102321032100 has 144 divisors (see below), whose sum is σ = 347486176128. Its totient is φ = 22755548160.

The previous prime is 102321032071. The next prime is 102321032117. The reversal of 102321032100 is 1230123201.

It is a super-2 number, since 2×102321032100² (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 102321032100.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 580737 + ... + 736136.

Almost surely, 2^102321032100 is an apocalyptic number.

102321032100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102321032100 is an abundant number, since it is smaller than the sum of its proper divisors (245165144028).

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

102321032100 is a wasteful number, since it uses less digits than its factorization.

102321032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316934 (or 1316927 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102321032100 its reverse (1230123201), we get a palindrome (103551155301).

The spelling of 102321032100 in words is "one hundred two billion, three hundred twenty-one million, thirty-two thousand, one hundred".