311302104102131 has 8 divisors (see below), whose sum is σ = 324837154955040. Its totient is φ = 297767067979392.

The previous prime is 311302104102107. The next prime is 311302104102139. The reversal of 311302104102131 is 131201401203113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311302104102131 is a prime.

It is a super-2 number, since 2×311302104102131² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311302104102097 and 311302104102106.

It is not an unprimeable number, because it can be changed into a prime (311302104102139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79056011 + ... + 82900283.

It is an arithmetic number, because the mean of its divisors is an integer number (40604644369380).

Almost surely, 2^{311302104102131} is an apocalyptic number.

311302104102131 is a deficient number, since it is larger than the sum of its proper divisors (13535050852909).

311302104102131 is a wasteful number, since it uses less digits than its factorization.

311302104102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365085.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 311302104102131 its reverse (131201401203113), we get a palindrome (442503505305244).

The spelling of 311302104102131 in words is "three hundred eleven trillion, three hundred two billion, one hundred four million, one hundred two thousand, one hundred thirty-one".