2313121040 has 40 divisors (see below), whose sum is σ = 5611837248. Its totient is φ = 885019520.

The previous prime is 2313121033. The next prime is 2313121043. The reversal of 2313121040 is 401213132.

2313121040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2313121043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626726 + ... + 630405.

Almost surely, 2^2313121040 is an apocalyptic number.

2313121040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2313121040 is an abundant number, since it is smaller than the sum of its proper divisors (3298716208).

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

2313121040 is a wasteful number, since it uses less digits than its factorization.

2313121040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257167 (or 1257161 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2313121040 is about 48094.9169871412. The cubic root of 2313121040 is about 1322.5114872567.

Adding to 2313121040 its reverse (401213132), we get a palindrome (2714334172).

The spelling of 2313121040 in words is "two billion, three hundred thirteen million, one hundred twenty-one thousand, forty".