20123012233039 has 2 divisors, whose sum is σ = 20123012233040. Its totient is φ = 20123012233038.

The previous prime is 20123012233003. The next prime is 20123012233117. The reversal of 20123012233039 is 93033221032102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123012233039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20123012233039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123012243039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061506116519 + 10061506116520.

It is an arithmetic number, because the mean of its divisors is an integer number (10061506116520).

Almost surely, 2^{20123012233039} is an apocalyptic number.

20123012233039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123012233039 is an equidigital number, since it uses as much as digits as its factorization.

20123012233039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 20123012233039 in words is "twenty trillion, one hundred twenty-three billion, twelve million, two hundred thirty-three thousand, thirty-nine".