102121132110 has 32 divisors (see below), whose sum is σ = 245133112320. Its totient is φ = 27227591328.

The previous prime is 102121132109. The next prime is 102121132213. The reversal of 102121132110 is 11231121201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102121132110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116322 + ... + 466661.

It is an arithmetic number, because the mean of its divisors is an integer number (7660409760).

Almost surely, 2^102121132110 is an apocalyptic number.

102121132110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121132110 is an abundant number, since it is smaller than the sum of its proper divisors (143011980210).

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

102121132110 is a wasteful number, since it uses less digits than its factorization.

102121132110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588832.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102121132110 its reverse (11231121201), we get a palindrome (113352253311).

The spelling of 102121132110 in words is "one hundred two billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred ten".