20123203310013 has 16 divisors (see below), whose sum is σ = 27339411206016. Its totient is φ = 13161273428160.

The previous prime is 20123203309999. The next prime is 20123203310029. The reversal of 20123203310013 is 31001330232102.

It is not a de Polignac number, because 20123203310013 - 2¹⁷ = 20123203178941 is a prime.

It is a super-2 number, since 2×20123203310013² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123203314013) 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, 3202353 + ... + 7106438.

It is an arithmetic number, because the mean of its divisors is an integer number (1708713200376).

Almost surely, 2^{20123203310013} is an apocalyptic number.

It is an amenable number.

20123203310013 is a deficient number, since it is larger than the sum of its proper divisors (7216207896003).

20123203310013 is a wasteful number, since it uses less digits than its factorization.

20123203310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10321124.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20123203310013 its reverse (31001330232102), we get a palindrome (51124533542115).

The spelling of 20123203310013 in words is "twenty trillion, one hundred twenty-three billion, two hundred three million, three hundred ten thousand, thirteen".