102311002120 has 32 divisors (see below), whose sum is σ = 240208441920. Its totient is φ = 39145078720.

The previous prime is 102311002099. The next prime is 102311002207. The reversal of 102311002120 is 21200113201.

It is a self number, because there is not a number n which added to its sum of digits gives 102311002120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55602886 + ... + 55604725.

It is an arithmetic number, because the mean of its divisors is an integer number (7506513810).

Almost surely, 2^102311002120 is an apocalyptic number.

102311002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102311002120 is an abundant number, since it is smaller than the sum of its proper divisors (137897439800).

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

102311002120 is a wasteful number, since it uses less digits than its factorization.

102311002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111207645 (or 111207641 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102311002120 its reverse (21200113201), we get a palindrome (123511115321).

The spelling of 102311002120 in words is "one hundred two billion, three hundred eleven million, two thousand, one hundred twenty".