23131455451 has 8 divisors (see below), whose sum is σ = 24918363680. Its totient is φ = 21345628032.

The previous prime is 23131455421. The next prime is 23131455499. The reversal of 23131455451 is 15455413132.

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 23131455451 - 2²¹ = 23129358299 is a prime.

It is a super-2 number, since 2×23131455451² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131455421) 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, 225471 + ... + 311608.

It is an arithmetic number, because the mean of its divisors is an integer number (3114795460).

Almost surely, 2^23131455451 is an apocalyptic number.

23131455451 is a deficient number, since it is larger than the sum of its proper divisors (1786908229).

23131455451 is a wasteful number, since it uses less digits than its factorization.

23131455451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540405.

The product of its digits is 36000, while the sum is 34.

Adding to 23131455451 its reverse (15455413132), we get a palindrome (38586868583).

The spelling of 23131455451 in words is "twenty-three billion, one hundred thirty-one million, four hundred fifty-five thousand, four hundred fifty-one".