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2131420312401 = 3710473437467
BaseRepresentation
bin11111000001000010100…
…011001111001101010001
321112202120100100102220220
4133001002203033031101
5234410122044444101
64311054434223253
7306663403504632
oct37010243171521
97482510312826
102131420312401
11751a26222716
122a5100424b29
13125cb877a033
1475238837889
153a69a899636
hex1f0428cf351

2131420312401 has 4 divisors (see below), whose sum is σ = 2841893749872. Its totient is φ = 1420946874932.

The previous prime is 2131420312391. The next prime is 2131420312421. The reversal of 2131420312401 is 1042130241312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131420312401 - 26 = 2131420312337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131420312421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355236718731 + ... + 355236718736.

It is an arithmetic number, because the mean of its divisors is an integer number (710473437468).

Almost surely, 22131420312401 is an apocalyptic number.

It is an amenable number.

2131420312401 is a deficient number, since it is larger than the sum of its proper divisors (710473437471).

2131420312401 is an equidigital number, since it uses as much as digits as its factorization.

2131420312401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710473437470.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2131420312401 its reverse (1042130241312), we get a palindrome (3173550553713).

The spelling of 2131420312401 in words is "two trillion, one hundred thirty-one billion, four hundred twenty million, three hundred twelve thousand, four hundred one".

Divisors: 1 3 710473437467 2131420312401