23012322013 has 16 divisors (see below), whose sum is σ = 23759601840. Its totient is φ = 22271901696.

The previous prime is 23012321999. The next prime is 23012322023. The reversal of 23012322013 is 31022321032.

It can be written as a sum of positive squares in 8 ways, for example, as 42797764 + 22969524249 = 6542^2 + 151557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23012322013 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 (23012322023) by changing a digit.

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, 9631423 + ... + 9633811.

It is an arithmetic number, because the mean of its divisors is an integer number (1484975115).

Almost surely, 2^23012322013 is an apocalyptic number.

It is an amenable number.

23012322013 is a deficient number, since it is larger than the sum of its proper divisors (747279827).

23012322013 is a wasteful number, since it uses less digits than its factorization.

23012322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23012322013 its reverse (31022321032), we get a palindrome (54034643045).

The spelling of 23012322013 in words is "twenty-three billion, twelve million, three hundred twenty-two thousand, thirteen".