102431130 has 64 divisors (see below), whose sum is σ = 257015808. Its totient is φ = 26095680.

The previous prime is 102431129. The next prime is 102431149. The reversal of 102431130 is 31134201.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76527 + ... + 77853.

It is an arithmetic number, because the mean of its divisors is an integer number (4015872).

Almost surely, 2^102431130 is an apocalyptic number.

102431130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102431130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128507904).

102431130 is an abundant number, since it is smaller than the sum of its proper divisors (154584678).

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

102431130 is a wasteful number, since it uses less digits than its factorization.

102431130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451.

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

The square root of 102431130 is about 10120.8265472737. The cubic root of 102431130 is about 467.8902419942.

Adding to 102431130 its reverse (31134201), we get a palindrome (133565331).

The spelling of 102431130 in words is "one hundred two million, four hundred thirty-one thousand, one hundred thirty".