20123002311123 has 8 divisors (see below), whose sum is σ = 26831141442000. Its totient is φ = 13415099027168.

The previous prime is 20123002311089. The next prime is 20123002311127. The reversal of 20123002311123 is 32111320032102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20123002311123 - 2⁶ = 20123002311059 is a prime.

It is a super-2 number, since 2×20123002311123² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20123002311123.

It is not an unprimeable number, because it can be changed into a prime (20123002311127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58762548 + ... + 59104001.

It is an arithmetic number, because the mean of its divisors is an integer number (3353892680250).

Almost surely, 2^{20123002311123} is an apocalyptic number.

20123002311123 is a deficient number, since it is larger than the sum of its proper divisors (6708139130877).

20123002311123 is a wasteful number, since it uses less digits than its factorization.

20123002311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117923461.

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

Adding to 20123002311123 its reverse (32111320032102), we get a palindrome (52234322343225).

The spelling of 20123002311123 in words is "twenty trillion, one hundred twenty-three billion, two million, three hundred eleven thousand, one hundred twenty-three".