102331020 has 48 divisors (see below), whose sum is σ = 312576768. Its totient is φ = 24807360.

The previous prime is 102331003. The next prime is 102331049. The reversal of 102331020 is 20133201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102330987 and 102331005.

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, 76864 + ... + 78183.

It is an arithmetic number, because the mean of its divisors is an integer number (6512016).

Almost surely, 2^102331020 is an apocalyptic number.

102331020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102331020 is an abundant number, since it is smaller than the sum of its proper divisors (210245748).

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

102331020 is a wasteful number, since it uses less digits than its factorization.

102331020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155070 (or 155068 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 102331020 is about 10115.8795959620. The cubic root of 102331020 is about 467.7377630876.

Adding to 102331020 its reverse (20133201), we get a palindrome (122464221).

The spelling of 102331020 in words is "one hundred two million, three hundred thirty-one thousand, twenty".