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131020231032201 = 376239058620581
BaseRepresentation
bin11101110010100110000110…
…010101000011110110001001
3122011220102010011200122002210
4131302212012111003312021
5114133113413121012301
61142353510241415333
736411620315326620
oct3562460625036611
9564812104618083
10131020231032201
1138824405800045
121284072233a549
1358152020596a4
14244d5ad46a6b7
15102320beb4ad6
hex772986543d89

131020231032201 has 8 divisors (see below), whose sum is σ = 199649875858624. Its totient is φ = 74868703446960.

The previous prime is 131020231032179. The next prime is 131020231032307. The reversal of 131020231032201 is 102230132020131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131020231032201 - 29 = 131020231031689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6239058620581 = 131020231032201 / (1 + 3 + 1 + 0 + 2 + 0 + 2 + 3 + 1 + 0 + 3 + 2 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131020231052201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3119529310270 + ... + 3119529310311.

It is an arithmetic number, because the mean of its divisors is an integer number (24956234482328).

Almost surely, 2131020231032201 is an apocalyptic number.

It is an amenable number.

131020231032201 is a deficient number, since it is larger than the sum of its proper divisors (68629644826423).

131020231032201 is an equidigital number, since it uses as much as digits as its factorization.

131020231032201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6239058620591.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131020231032201 its reverse (102230132020131), we get a palindrome (233250363052332).

The spelling of 131020231032201 in words is "one hundred thirty-one trillion, twenty billion, two hundred thirty-one million, thirty-two thousand, two hundred one".

Divisors: 1 3 7 21 6239058620581 18717175861743 43673410344067 131020231032201