102153555105051 has 4 divisors (see below), whose sum is σ = 136204740140072. Its totient is φ = 68102370070032.

The previous prime is 102153555104971. The next prime is 102153555105059. The reversal of 102153555105051 is 150501555351201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102153555105051 - 2²⁶ = 102153487996187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102153555105059) 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, 17025592517506 + ... + 17025592517511.

It is an arithmetic number, because the mean of its divisors is an integer number (34051185035018).

Almost surely, 2^{102153555105051} is an apocalyptic number.

102153555105051 is a deficient number, since it is larger than the sum of its proper divisors (34051185035021).

102153555105051 is an equidigital number, since it uses as much as digits as its factorization.

102153555105051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34051185035020.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 102153555105051 in words is "one hundred two trillion, one hundred fifty-three billion, five hundred fifty-five million, one hundred five thousand, fifty-one".