2313120021210 has 144 divisors (see below), whose sum is σ = 6184239339096. Its totient is φ = 599851132416.

The previous prime is 2313120021089. The next prime is 2313120021257. The reversal of 2313120021210 is 121200213132.

2313120021210 is a `hidden beast` number, since 2 + 313 + 120 + 0 + 21 + 210 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 826766477289 + 1486353543921 = 909267^2 + 1219161^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 329829664 + ... + 329836676.

Almost surely, 2^{2313120021210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2313120021210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3092119669548).

2313120021210 is an abundant number, since it is smaller than the sum of its proper divisors (3871119317886).

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

2313120021210 is a wasteful number, since it uses less digits than its factorization.

2313120021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9777 (or 9737 counting only the distinct ones).

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

Adding to 2313120021210 its reverse (121200213132), we get a palindrome (2434320234342).

The spelling of 2313120021210 in words is "two trillion, three hundred thirteen billion, one hundred twenty million, twenty-one thousand, two hundred ten".