2131023013 has 4 divisors (see below), whose sum is σ = 2435454880. Its totient is φ = 1826591148.

The previous prime is 2131022989. The next prime is 2131023017. The reversal of 2131023013 is 3103201312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131023013 - 2¹⁷ = 2130891941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131023017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152215923 + ... + 152215936.

It is an arithmetic number, because the mean of its divisors is an integer number (608863720).

Almost surely, 2^2131023013 is an apocalyptic number.

It is an amenable number.

2131023013 is a deficient number, since it is larger than the sum of its proper divisors (304431867).

2131023013 is an equidigital number, since it uses as much as digits as its factorization.

2131023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304431866.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2131023013 is about 46163.0048090460. The cubic root of 2131023013 is about 1286.8543054207.

Adding to 2131023013 its reverse (3103201312), we get a palindrome (5234224325).

The spelling of 2131023013 in words is "two billion, one hundred thirty-one million, twenty-three thousand, thirteen".