20231030133123 has 16 divisors (see below), whose sum is σ = 26979448783872. Its totient is φ = 13484982708000.

The previous prime is 20231030133113. The next prime is 20231030133157. The reversal of 20231030133123 is 32133103013202.

It is not a de Polignac number, because 20231030133123 - 2¹² = 20231030129027 is a prime.

It is a super-2 number, since 2×20231030133123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20231030133093 and 20231030133102.

It is not an unprimeable number, because it can be changed into a prime (20231030133113) 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, 553180428 + ... + 553216998.

It is an arithmetic number, because the mean of its divisors is an integer number (1686215548992).

Almost surely, 2^{20231030133123} is an apocalyptic number.

20231030133123 is a deficient number, since it is larger than the sum of its proper divisors (6748418650749).

20231030133123 is a wasteful number, since it uses less digits than its factorization.

20231030133123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63946.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20231030133123 its reverse (32133103013202), we get a palindrome (52364133146325).

The spelling of 20231030133123 in words is "twenty trillion, two hundred thirty-one billion, thirty million, one hundred thirty-three thousand, one hundred twenty-three".