104321015251 has 4 divisors (see below), whose sum is σ = 104334368472. Its totient is φ = 104307662032.

The previous prime is 104321015237. The next prime is 104321015257. The reversal of 104321015251 is 152510123401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152510123401 = 1123 ⋅135805987.

It is a cyclic number.

It is not a de Polignac number, because 104321015251 - 2³⁵ = 69961276883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104321015257) 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, 6664885 + ... + 6680518.

It is an arithmetic number, because the mean of its divisors is an integer number (26083592118).

Almost surely, 2^104321015251 is an apocalyptic number.

104321015251 is a deficient number, since it is larger than the sum of its proper divisors (13353221).

104321015251 is an equidigital number, since it uses as much as digits as its factorization.

104321015251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13353220.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 104321015251 its reverse (152510123401), we get a palindrome (256831138652).

The spelling of 104321015251 in words is "one hundred four billion, three hundred twenty-one million, fifteen thousand, two hundred fifty-one".