312023120311 has 16 divisors (see below), whose sum is σ = 358012182528. Its totient is φ = 266387976000.

The previous prime is 312023120309. The next prime is 312023120363. The reversal of 312023120311 is 113021320213.

It is a cyclic number.

It is not a de Polignac number, because 312023120311 - 2¹ = 312023120309 is a prime.

It is a super-2 number, since 2×312023120311² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312023520311) 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, 16837731 + ... + 16856251.

It is an arithmetic number, because the mean of its divisors is an integer number (22375761408).

Almost surely, 2^312023120311 is an apocalyptic number.

312023120311 is a deficient number, since it is larger than the sum of its proper divisors (45989062217).

312023120311 is a wasteful number, since it uses less digits than its factorization.

312023120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27942.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312023120311 its reverse (113021320213), we get a palindrome (425044440524).

It can be divided in two parts, 31202 and 3120311, that added together give a palindrome (3151513).

The spelling of 312023120311 in words is "three hundred twelve billion, twenty-three million, one hundred twenty thousand, three hundred eleven".