23301121531 has 8 divisors (see below), whose sum is σ = 23343123024. Its totient is φ = 23259146400.

The previous prime is 23301121507. The next prime is 23301121541. The reversal of 23301121531 is 13512110332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23301121531 is a prime.

It is a super-2 number, since 2×23301121531² (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 (23301121541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696640 + ... + 2705266.

It is an arithmetic number, because the mean of its divisors is an integer number (2917890378).

Almost surely, 2^23301121531 is an apocalyptic number.

23301121531 is a deficient number, since it is larger than the sum of its proper divisors (42001493).

23301121531 is an equidigital number, since it uses as much as digits as its factorization.

23301121531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13181.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 23301121531 its reverse (13512110332), we get a palindrome (36813231863).

The spelling of 23301121531 in words is "twenty-three billion, three hundred one million, one hundred twenty-one thousand, five hundred thirty-one".