102150101155 has 4 divisors (see below), whose sum is σ = 122580121392. Its totient is φ = 81720080920.

The previous prime is 102150101117. The next prime is 102150101161. The reversal of 102150101155 is 551101051201.

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

It is not a de Polignac number, because 102150101155 - 2¹³ = 102150092963 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 10215010111 + ... + 10215010120.

It is an arithmetic number, because the mean of its divisors is an integer number (30645030348).

Almost surely, 2^102150101155 is an apocalyptic number.

102150101155 is a deficient number, since it is larger than the sum of its proper divisors (20430020237).

102150101155 is an equidigital number, since it uses as much as digits as its factorization.

102150101155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20430020236.

The product of its (nonzero) digits is 250, while the sum is 22.

Adding to 102150101155 its reverse (551101051201), we get a palindrome (653251152356).

The spelling of 102150101155 in words is "one hundred two billion, one hundred fifty million, one hundred one thousand, one hundred fifty-five".