20020112313123 has 32 divisors (see below), whose sum is σ = 28981965906432. Its totient is φ = 12219397632000.

The previous prime is 20020112313059. The next prime is 20020112313221. The reversal of 20020112313123 is 32131321102002.

It is not a de Polignac number, because 20020112313123 - 2⁶ = 20020112313059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020112313123.

It is not an unprimeable number, because it can be changed into a prime (20020112313323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8375523 + ... + 10497123.

It is an arithmetic number, because the mean of its divisors is an integer number (905686434576).

Almost surely, 2^{20020112313123} is an apocalyptic number.

20020112313123 is a deficient number, since it is larger than the sum of its proper divisors (8961853593309).

20020112313123 is a wasteful number, since it uses less digits than its factorization.

20020112313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123595.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20020112313123 its reverse (32131321102002), we get a palindrome (52151433415125).

It can be divided in two parts, 2002011 and 2313123, that added together give a palindrome (4315134).

The spelling of 20020112313123 in words is "twenty trillion, twenty billion, one hundred twelve million, three hundred thirteen thousand, one hundred twenty-three".