102621938103 has 24 divisors (see below), whose sum is σ = 156092468480. Its totient is φ = 64789301520.

The previous prime is 102621938009. The next prime is 102621938117. The reversal of 102621938103 is 301839126201.

102621938103 is a `hidden beast` number, since 1 + 0 + 262 + 19 + 381 + 0 + 3 = 666.

It is not a de Polignac number, because 102621938103 - 2²⁹ = 102085067191 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 (102621938203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344400 + ... + 569082.

Almost surely, 2^102621938103 is an apocalyptic number.

102621938103 is a deficient number, since it is larger than the sum of its proper divisors (53470530377).

102621938103 is a wasteful number, since it uses less digits than its factorization.

102621938103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227379 (or 227376 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 102621938103 in words is "one hundred two billion, six hundred twenty-one million, nine hundred thirty-eight thousand, one hundred three".