23201131123 has 16 divisors (see below), whose sum is σ = 25086853440. Its totient is φ = 21375184896.

The previous prime is 23201131103. The next prime is 23201131133. The reversal of 23201131123 is 32113110232.

It is a cyclic number.

It is not a de Polignac number, because 23201131123 - 2⁵ = 23201131091 is a prime.

It is a super-2 number, since 2×23201131123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23201131123.

It is not an unprimeable number, because it can be changed into a prime (23201131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366211 + ... + 424867.

It is an arithmetic number, because the mean of its divisors is an integer number (1567928340).

Almost surely, 2^23201131123 is an apocalyptic number.

23201131123 is a deficient number, since it is larger than the sum of its proper divisors (1885722317).

23201131123 is a wasteful number, since it uses less digits than its factorization.

23201131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59166.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23201131123 its reverse (32113110232), we get a palindrome (55314241355).

The spelling of 23201131123 in words is "twenty-three billion, two hundred one million, one hundred thirty-one thousand, one hundred twenty-three".