311341320504231 has 16 divisors (see below), whose sum is σ = 415177320950784. Its totient is φ = 207533101799744.

The previous prime is 311341320504169. The next prime is 311341320504233. The reversal of 311341320504231 is 132405023143113.

It is a cyclic number.

It is not a de Polignac number, because 311341320504231 - 2²⁷ = 311341186286503 is a prime.

It is a super-2 number, since 2×311341320504231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311341320504192 and 311341320504201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311341320504233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856901155 + ... + 857264411.

It is an arithmetic number, because the mean of its divisors is an integer number (25948582559424).

Almost surely, 2^{311341320504231} is an apocalyptic number.

311341320504231 is a deficient number, since it is larger than the sum of its proper divisors (103836000446553).

311341320504231 is a wasteful number, since it uses less digits than its factorization.

311341320504231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400710.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 311341320504231 its reverse (132405023143113), we get a palindrome (443746343647344).

The spelling of 311341320504231 in words is "three hundred eleven trillion, three hundred forty-one billion, three hundred twenty million, five hundred four thousand, two hundred thirty-one".