104015251421 has 8 divisors (see below), whose sum is σ = 107382892800. Its totient is φ = 100648379520.

The previous prime is 104015251369. The next prime is 104015251427. The reversal of 104015251421 is 124152510401.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-104015251421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104015251427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88910 + ... + 464688.

It is an arithmetic number, because the mean of its divisors is an integer number (13422861600).

Almost surely, 2^104015251421 is an apocalyptic number.

It is an amenable number.

104015251421 is a deficient number, since it is larger than the sum of its proper divisors (3367641379).

104015251421 is an equidigital number, since it uses as much as digits as its factorization.

104015251421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384739.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 104015251421 its reverse (124152510401), we get a palindrome (228167761822).

The spelling of 104015251421 in words is "one hundred four billion, fifteen million, two hundred fifty-one thousand, four hundred twenty-one".