104102120451 has 32 divisors (see below), whose sum is σ = 166385571840. Its totient is φ = 56647679616.

The previous prime is 104102120417. The next prime is 104102120459. The reversal of 104102120451 is 154021201401.

It is not a de Polignac number, because 104102120451 - 2⁹ = 104102119939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (104102120459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1388796 + ... + 1461833.

It is an arithmetic number, because the mean of its divisors is an integer number (5199549120).

Almost surely, 2^104102120451 is an apocalyptic number.

104102120451 is a deficient number, since it is larger than the sum of its proper divisors (62283451389).

104102120451 is a wasteful number, since it uses less digits than its factorization.

104102120451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850723.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 104102120451 its reverse (154021201401), we get a palindrome (258123321852).

The spelling of 104102120451 in words is "one hundred four billion, one hundred two million, one hundred twenty thousand, four hundred fifty-one".