23031293913 has 24 divisors (see below), whose sum is σ = 33624808776. Its totient is φ = 15189504000.

The previous prime is 23031293903. The next prime is 23031293933. The reversal of 23031293913 is 31939213032.

It is a happy number.

23031293913 is a `hidden beast` number, since 230 + 31 + 2 + 9 + 391 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3795545664 + 19235748249 = 61608^2 + 138693^2 .

It is not a de Polignac number, because 23031293913 - 2⁶ = 23031293849 is a prime.

It is a super-3 number, since 3×23031293913³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (23031293903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1150873 + ... + 1170713.

It is an arithmetic number, because the mean of its divisors is an integer number (1401033699).

Almost surely, 2^23031293913 is an apocalyptic number.

It is an amenable number.

23031293913 is a deficient number, since it is larger than the sum of its proper divisors (10593514863).

23031293913 is a wasteful number, since it uses less digits than its factorization.

23031293913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21225 (or 21222 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The spelling of 23031293913 in words is "twenty-three billion, thirty-one million, two hundred ninety-three thousand, nine hundred thirteen".