102131430 has 16 divisors (see below), whose sum is σ = 245115504. Its totient is φ = 27235040.

The previous prime is 102131429. The next prime is 102131443. The reversal of 102131430 is 34131201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702161 + ... + 1702220.

It is an arithmetic number, because the mean of its divisors is an integer number (15319719).

Almost surely, 2^102131430 is an apocalyptic number.

102131430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102131430 is an abundant number, since it is smaller than the sum of its proper divisors (142984074).

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

102131430 is a wasteful number, since it uses less digits than its factorization.

102131430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404391.

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

The square root of 102131430 is about 10106.0095982539. The cubic root of 102131430 is about 467.4334678023.

Adding to 102131430 its reverse (34131201), we get a palindrome (136262631).

The spelling of 102131430 in words is "one hundred two million, one hundred thirty-one thousand, four hundred thirty".