23132020231 has 32 divisors (see below), whose sum is σ = 25414963200. Its totient is φ = 20972701440.

The previous prime is 23132020229. The next prime is 23132020279. The reversal of 23132020231 is 13202023132.

It is a cyclic number.

It is not a de Polignac number, because 23132020231 - 2¹ = 23132020229 is a prime.

It is a super-2 number, since 2×23132020231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23132020199 and 23132020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132020291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35423901 + ... + 35424553.

It is an arithmetic number, because the mean of its divisors is an integer number (794217600).

Almost surely, 2^23132020231 is an apocalyptic number.

23132020231 is a deficient number, since it is larger than the sum of its proper divisors (2282942969).

23132020231 is a wasteful number, since it uses less digits than its factorization.

23132020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23132020231 its reverse (13202023132), we get a palindrome (36334043363).

The spelling of 23132020231 in words is "twenty-three billion, one hundred thirty-two million, twenty thousand, two hundred thirty-one".