2311031320002 has 24 divisors (see below), whose sum is σ = 5142565191036. Its totient is φ = 749523671136.

The previous prime is 2311031319977. The next prime is 2311031320009. The reversal of 2311031320002 is 2000231301132.

2311031320002 is a `hidden beast` number, since 2 + 311 + 0 + 31 + 320 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1718933388561 + 592097931441 = 1311081^2 + 769479^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2311031320009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1735007833 + ... + 1735009164.

Almost surely, 2^{2311031320002} is an apocalyptic number.

2311031320002 is an abundant number, since it is smaller than the sum of its proper divisors (2831533871034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311031320002 is a wasteful number, since it uses less digits than its factorization.

2311031320002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470017042 (or 3470017039 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2311031320002 its reverse (2000231301132), we get a palindrome (4311262621134).

The spelling of 2311031320002 in words is "two trillion, three hundred eleven billion, thirty-one million, three hundred twenty thousand, two".