2031022013 has 4 divisors (see below), whose sum is σ = 2032933728. Its totient is φ = 2029110300.

The previous prime is 2031022003. The next prime is 2031022031. The reversal of 2031022013 is 3102201302.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3102201302 = 2 ⋅1551100651.

It is a cyclic number.

It is not a de Polignac number, because 2031022013 - 2⁴ = 2031021997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031022003) 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, 954263 + ... + 956388.

It is an arithmetic number, because the mean of its divisors is an integer number (508233432).

Almost surely, 2^2031022013 is an apocalyptic number.

It is an amenable number.

2031022013 is a deficient number, since it is larger than the sum of its proper divisors (1911715).

2031022013 is a wasteful number, since it uses less digits than its factorization.

2031022013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911714.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2031022013 is about 45066.8615836515. The cubic root of 2031022013 is about 1266.4018710182.

Adding to 2031022013 its reverse (3102201302), we get a palindrome (5133223315).

The spelling of 2031022013 in words is "two billion, thirty-one million, twenty-two thousand, thirteen".