102431020 has 12 divisors (see below), whose sum is σ = 215105184. Its totient is φ = 40972400.

The previous prime is 102431009. The next prime is 102431023. The reversal of 102431020 is 20134201.

It is a super-2 number, since 2×102431020² = 20984227716480800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102431023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2560756 + ... + 2560795.

It is an arithmetic number, because the mean of its divisors is an integer number (17925432).

Almost surely, 2^102431020 is an apocalyptic number.

102431020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102431020 is an abundant number, since it is smaller than the sum of its proper divisors (112674164).

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

102431020 is a wasteful number, since it uses less digits than its factorization.

102431020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121560 (or 5121558 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102431020 is about 10120.8211129335. The cubic root of 102431020 is about 467.8900745062.

Adding to 102431020 its reverse (20134201), we get a palindrome (122565221).

The spelling of 102431020 in words is "one hundred two million, four hundred thirty-one thousand, twenty".