102111202320 has 80 divisors (see below), whose sum is σ = 320101476480. Its totient is φ = 26923697152.

The previous prime is 102111202283. The next prime is 102111202373. The reversal of 102111202320 is 23202111201.

It is a tau number, because it is divible by the number of its divisors (80).

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 102111202320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2368884 + ... + 2411603.

It is an arithmetic number, because the mean of its divisors is an integer number (4001268456).

Almost surely, 2^102111202320 is an apocalyptic number.

102111202320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111202320 is an abundant number, since it is smaller than the sum of its proper divisors (217990274160).

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

102111202320 is a wasteful number, since it uses less digits than its factorization.

102111202320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780592 (or 4780586 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102111202320 its reverse (23202111201), we get a palindrome (125313313521).

The spelling of 102111202320 in words is "one hundred two billion, one hundred eleven million, two hundred two thousand, three hundred twenty".