2313121132 has 48 divisors (see below), whose sum is σ = 4899525120. Its totient is φ = 934065792.

The previous prime is 2313121117. The next prime is 2313121169. The reversal of 2313121132 is 2311213132.

It is a super-2 number, since 2×2313121132² = 10701058742609922848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16344 + ... + 69952.

It is an arithmetic number, because the mean of its divisors is an integer number (102073440).

Almost surely, 2^2313121132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2313121132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449762560).

2313121132 is an abundant number, since it is smaller than the sum of its proper divisors (2586403988).

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

2313121132 is a wasteful number, since it uses less digits than its factorization.

2313121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53710 (or 53708 counting only the distinct ones).

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

The square root of 2313121132 is about 48094.9179435832. The cubic root of 2313121132 is about 1322.5115047902.

Adding to 2313121132 its reverse (2311213132), we get a palindrome (4624334264).

The spelling of 2313121132 in words is "two billion, three hundred thirteen million, one hundred twenty-one thousand, one hundred thirty-two".