102120101115170 has 16 divisors (see below), whose sum is σ = 183816300699000. Its totient is φ = 40848014070144.

The previous prime is 102120101115133. The next prime is 102120101115251. The reversal of 102120101115170 is 71511101021201.

It can be written as a sum of positive squares in 4 ways, for example, as 61683258269161 + 40436842846009 = 7853869^2 + 6358997^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22803206 + ... + 26911454.

Almost surely, 2^{102120101115170} is an apocalyptic number.

102120101115170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102120101115170 is a deficient number, since it is larger than the sum of its proper divisors (81696199583830).

102120101115170 is a wasteful number, since it uses less digits than its factorization.

102120101115170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6593989.

The product of its (nonzero) digits is 140, while the sum is 23.

Adding to 102120101115170 its reverse (71511101021201), we get a palindrome (173631202136371).

The spelling of 102120101115170 in words is "one hundred two trillion, one hundred twenty billion, one hundred one million, one hundred fifteen thousand, one hundred seventy".