102011212320 has 96 divisors (see below), whose sum is σ = 321420052800. Its totient is φ = 27195816960.

The previous prime is 102011212313. The next prime is 102011212321. The reversal of 102011212320 is 23212110201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×102011212320² (a number of 23 digits) contains 22 as substring.

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 102011212320.

It is not an unprimeable number, because it can be changed into a prime (102011212321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1937706 + ... + 1989654.

It is an arithmetic number, because the mean of its divisors is an integer number (3348125550).

Almost surely, 2^102011212320 is an apocalyptic number.

102011212320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102011212320 is an abundant number, since it is smaller than the sum of its proper divisors (219408840480).

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

102011212320 is a wasteful number, since it uses less digits than its factorization.

102011212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56058 (or 56050 counting only the distinct ones).

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

Adding to 102011212320 its reverse (23212110201), we get a palindrome (125223322521).

The spelling of 102011212320 in words is "one hundred two billion, eleven million, two hundred twelve thousand, three hundred twenty".