23015542541 has 4 divisors (see below), whose sum is σ = 23339705184. Its totient is φ = 22691379900.

The previous prime is 23015542483. The next prime is 23015542547. The reversal of 23015542541 is 14524551032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-23015542541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23015542498 and 23015542507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015542547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162081215 + ... + 162081356.

It is an arithmetic number, because the mean of its divisors is an integer number (5834926296).

Almost surely, 2^23015542541 is an apocalyptic number.

It is an amenable number.

23015542541 is a deficient number, since it is larger than the sum of its proper divisors (324162643).

23015542541 is an equidigital number, since it uses as much as digits as its factorization.

23015542541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324162642.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 23015542541 in words is "twenty-three billion, fifteen million, five hundred forty-two thousand, five hundred forty-one".