104531123551 has 4 divisors (see below), whose sum is σ = 105354203392. Its totient is φ = 103708043712.

The previous prime is 104531123549. The next prime is 104531123617. The reversal of 104531123551 is 155321135401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155321135401 = 28771 ⋅5398531.

It is a cyclic number.

It is not a de Polignac number, because 104531123551 - 2¹ = 104531123549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104531723551) 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, 411539730 + ... + 411539983.

It is an arithmetic number, because the mean of its divisors is an integer number (26338550848).

Almost surely, 2^104531123551 is an apocalyptic number.

104531123551 is a deficient number, since it is larger than the sum of its proper divisors (823079841).

104531123551 is an equidigital number, since it uses as much as digits as its factorization.

104531123551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823079840.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 104531123551 its reverse (155321135401), we get a palindrome (259852258952).

The spelling of 104531123551 in words is "one hundred four billion, five hundred thirty-one million, one hundred twenty-three thousand, five hundred fifty-one".