23155150501513 has 4 divisors (see below), whose sum is σ = 23481279381888. Its totient is φ = 22829021621140.

The previous prime is 23155150501387. The next prime is 23155150501579. The reversal of 23155150501513 is 31510505155132.

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 cyclic number.

It is not a de Polignac number, because 23155150501513 - 2¹⁷ = 23155150370441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23155150501583) 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, 163064440081 + ... + 163064440222.

It is an arithmetic number, because the mean of its divisors is an integer number (5870319845472).

Almost surely, 2^{23155150501513} is an apocalyptic number.

It is an amenable number.

23155150501513 is a deficient number, since it is larger than the sum of its proper divisors (326128880375).

23155150501513 is an equidigital number, since it uses as much as digits as its factorization.

23155150501513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326128880374.

The product of its (nonzero) digits is 56250, while the sum is 37.

Adding to 23155150501513 its reverse (31510505155132), we get a palindrome (54665655656645).

The spelling of 23155150501513 in words is "twenty-three trillion, one hundred fifty-five billion, one hundred fifty million, five hundred one thousand, five hundred thirteen".