102120033100 has 18 divisors (see below), whose sum is σ = 221600472044. Its totient is φ = 40848013200.

The previous prime is 102120033089. The next prime is 102120033109. The reversal of 102120033100 is 1330021201.

It is a super-2 number, since 2×102120033100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102120033109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510600066 + ... + 510600265.

Almost surely, 2^102120033100 is an apocalyptic number.

102120033100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120033100 is an abundant number, since it is smaller than the sum of its proper divisors (119480438944).

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

102120033100 is a wasteful number, since it uses less digits than its factorization.

102120033100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021200345 (or 1021200338 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 102120033100 its reverse (1330021201), we get a palindrome (103450054301).

The spelling of 102120033100 in words is "one hundred two billion, one hundred twenty million, thirty-three thousand, one hundred".