2311212200031 has 72 divisors (see below), whose sum is σ = 4028242458240. Its totient is φ = 1320382797552.

The previous prime is 2311212200021. The next prime is 2311212200039. The reversal of 2311212200031 is 1300022121132.

It is not a de Polignac number, because 2311212200031 - 2⁷ = 2311212199903 is a prime.

It is a super-3 number, since 3×2311212200031³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2311212199977 and 2311212200013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311212200039) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 56645020 + ... + 56685806.

It is an arithmetic number, because the mean of its divisors is an integer number (55947811920).

Almost surely, 2^{2311212200031} is an apocalyptic number.

2311212200031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2311212200031 is a deficient number, since it is larger than the sum of its proper divisors (1717030258209).

2311212200031 is an equidigital number, since it uses as much as digits as its factorization.

2311212200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45575 (or 45556 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2311212200031 its reverse (1300022121132), we get a palindrome (3611234321163).

The spelling of 2311212200031 in words is "two trillion, three hundred eleven billion, two hundred twelve million, two hundred thousand, thirty-one".