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131020204301 = 795211965883
BaseRepresentation
bin111101000000101101…
…0011010100100001101
3110112012000121222211022
41322001122122210031
54121312133014201
6140105001403525
712315542234630
oct1720132324415
9415160558738
10131020204301
1150624542788
12214864995a5
13c48036710c
1464acb95c17
15361c6d641b
hex1e8169a90d

131020204301 has 8 divisors (see below), whose sum is σ = 149753179584. Its totient is φ = 112291179840.

The previous prime is 131020204277. The next prime is 131020204309. The reversal of 131020204301 is 103402020131.

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

It is a de Polignac number, because none of the positive numbers 2k-131020204301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131020204301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020204309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916295 + ... + 1049588.

It is an arithmetic number, because the mean of its divisors is an integer number (18719147448).

Almost surely, 2131020204301 is an apocalyptic number.

It is an amenable number.

131020204301 is a deficient number, since it is larger than the sum of its proper divisors (18732975283).

131020204301 is an equidigital number, since it uses as much as digits as its factorization.

131020204301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975411.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 131020204301 its reverse (103402020131), we get a palindrome (234422224432).

The spelling of 131020204301 in words is "one hundred thirty-one billion, twenty million, two hundred four thousand, three hundred one".

Divisors: 1 7 9521 66647 1965883 13761181 18717172043 131020204301