102312130 has 16 divisors (see below), whose sum is σ = 184300920. Its totient is φ = 40893952.

The previous prime is 102312083. The next prime is 102312139. The reversal of 102312130 is 31213201.

It can be written as a sum of positive squares in 4 ways, for example, as 101384761 + 927369 = 10069^2 + 963^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102312130.

It is not an unprimeable number, because it can be changed into a prime (102312139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13956 + ... + 19984.

Almost surely, 2^102312130 is an apocalyptic number.

102312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102312130 is a deficient number, since it is larger than the sum of its proper divisors (81988790).

102312130 is a wasteful number, since it uses less digits than its factorization.

102312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7733.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 102312130 is about 10114.9458723218. The cubic root of 102312130 is about 467.7089803194.

Adding to 102312130 its reverse (31213201), we get a palindrome (133525331).

The spelling of 102312130 in words is "one hundred two million, three hundred twelve thousand, one hundred thirty".