2152312013 has 4 divisors (see below), whose sum is σ = 2278918620. Its totient is φ = 2025705408.

The previous prime is 2152312007. The next prime is 2152312021. The reversal of 2152312013 is 3102132512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 938625769 + 1213686244 = 30637^2 + 34838^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152312013 - 2⁶ = 2152311949 is a prime.

It is a super-2 number, since 2×2152312013² = 9264894002608224338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152312213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63303278 + ... + 63303311.

It is an arithmetic number, because the mean of its divisors is an integer number (569729655).

Almost surely, 2^2152312013 is an apocalyptic number.

It is an amenable number.

2152312013 is a deficient number, since it is larger than the sum of its proper divisors (126606607).

2152312013 is a wasteful number, since it uses less digits than its factorization.

2152312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126606606.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2152312013 is about 46393.0168559881. The cubic root of 2152312013 is about 1291.1253551496.

Adding to 2152312013 its reverse (3102132512), we get a palindrome (5254444525).

The spelling of 2152312013 in words is "two billion, one hundred fifty-two million, three hundred twelve thousand, thirteen".