102023100 has 54 divisors (see below), whose sum is σ = 319788560. Its totient is φ = 27205920.

The previous prime is 102023087. The next prime is 102023143. The reversal of 102023100 is 1320201.

It is a happy number.

It is a super-2 number, since 2×102023100² = 20817425867220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55780 + ... + 57579.

Almost surely, 2^102023100 is an apocalyptic number.

102023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102023100 is an abundant number, since it is smaller than the sum of its proper divisors (217765460).

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

102023100 is a wasteful number, since it uses less digits than its factorization.

102023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113379 (or 113369 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 102023100 is about 10100.6484940324. The cubic root of 102023100 is about 467.2681416744.

Adding to 102023100 its reverse (1320201), we get a palindrome (103343301).

The spelling of 102023100 in words is "one hundred two million, twenty-three thousand, one hundred".