102421104 has 20 divisors (see below), whose sum is σ = 264587976. Its totient is φ = 34140352.

The previous prime is 102421079. The next prime is 102421133. The reversal of 102421104 is 401124201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066839 + ... + 1066934.

Almost surely, 2^102421104 is an apocalyptic number.

It is an amenable number.

102421104 is an abundant number, since it is smaller than the sum of its proper divisors (162166872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102421104 is a wasteful number, since it uses less digits than its factorization.

102421104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133784 (or 2133778 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 102421104 is about 10120.3312198762. The cubic root of 102421104 is about 467.8749757347.

Adding to 102421104 its reverse (401124201), we get a palindrome (503545305).

The spelling of 102421104 in words is "one hundred two million, four hundred twenty-one thousand, one hundred four".