311132031212031 has 24 divisors (see below), whose sum is σ = 441286826547840. Its totient is φ = 194951569287552.

The previous prime is 311132031211987. The next prime is 311132031212033. The reversal of 311132031212031 is 130212130231113.

It is not a de Polignac number, because 311132031212031 - 2²⁹ = 311131494341119 is a prime.

It is a super-2 number, since 2×311132031212031² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311132031211992 and 311132031212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311132031212033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246178821 + ... + 247439438.

It is an arithmetic number, because the mean of its divisors is an integer number (18386951106160).

Almost surely, 2^{311132031212031} is an apocalyptic number.

311132031212031 is a deficient number, since it is larger than the sum of its proper divisors (130154795335809).

311132031212031 is a wasteful number, since it uses less digits than its factorization.

311132031212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493619023 (or 493619006 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 311132031212031 its reverse (130212130231113), we get a palindrome (441344161443144).

The spelling of 311132031212031 in words is "three hundred eleven trillion, one hundred thirty-two billion, thirty-one million, two hundred twelve thousand, thirty-one".