23103431043021 has 40 divisors (see below), whose sum is σ = 39497753306880. Its totient is φ = 13183598804832.

The previous prime is 23103431043013. The next prime is 23103431043031. The reversal of 23103431043021 is 12034013430132.

It is a happy number.

23103431043021 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 343 + 10 + 4 + 302 + 1 = 666.

It is not a de Polignac number, because 23103431043021 - 2³ = 23103431043013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23103431043031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27928066 + ... + 28743411.

It is an arithmetic number, because the mean of its divisors is an integer number (987443832672).

Almost surely, 2^{23103431043021} is an apocalyptic number.

23103431043021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23103431043021 is a deficient number, since it is larger than the sum of its proper divisors (16394322263859).

23103431043021 is an equidigital number, since it uses as much as digits as its factorization.

23103431043021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56672215 (or 56672206 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 23103431043021 its reverse (12034013430132), we get a palindrome (35137444473153).

The spelling of 23103431043021 in words is "twenty-three trillion, one hundred three billion, four hundred thirty-one million, forty-three thousand, twenty-one".