20123313102013 has 16 divisors (see below), whose sum is σ = 22672171210752. Its totient is φ = 17694955278000.

The previous prime is 20123313102001. The next prime is 20123313102031. The reversal of 20123313102013 is 31020131332102.

It is not a de Polignac number, because 20123313102013 - 2²⁹ = 20122776231101 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 (20123313112013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14048043 + ... + 15414088.

It is an arithmetic number, because the mean of its divisors is an integer number (1417010700672).

Almost surely, 2^{20123313102013} is an apocalyptic number.

It is an amenable number.

20123313102013 is a deficient number, since it is larger than the sum of its proper divisors (2548858108739).

20123313102013 is a wasteful number, since it uses less digits than its factorization.

20123313102013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29464176.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20123313102013 its reverse (31020131332102), we get a palindrome (51143444434115).

The spelling of 20123313102013 in words is "twenty trillion, one hundred twenty-three billion, three hundred thirteen million, one hundred two thousand, thirteen".