102731130 has 48 divisors (see below), whose sum is σ = 267770880. Its totient is φ = 27326304.

The previous prime is 102731113. The next prime is 102731149. The reversal of 102731130 is 31137201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41919 + ... + 44301.

It is an arithmetic number, because the mean of its divisors is an integer number (5578560).

Almost surely, 2^102731130 is an apocalyptic number.

102731130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102731130 is an abundant number, since it is smaller than the sum of its proper divisors (165039750).

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

102731130 is a wasteful number, since it uses less digits than its factorization.

102731130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875 (or 2872 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 102731130 is about 10135.6366351601. The cubic root of 102731130 is about 468.3465819746.

Adding to 102731130 its reverse (31137201), we get a palindrome (133868331).

The spelling of 102731130 in words is "one hundred two million, seven hundred thirty-one thousand, one hundred thirty".