102131230 has 16 divisors (see below), whose sum is σ = 184524480. Its totient is φ = 40699552.

The previous prime is 102131219. The next prime is 102131231. The reversal of 102131230 is 32131201.

It is a self number, because there is not a number n which added to its sum of digits gives 102131230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102131231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16294 + ... + 21673.

It is an arithmetic number, because the mean of its divisors is an integer number (11532780).

Almost surely, 2^102131230 is an apocalyptic number.

102131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102131230 is a deficient number, since it is larger than the sum of its proper divisors (82393250).

102131230 is a wasteful number, since it uses less digits than its factorization.

102131230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38243.

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

The square root of 102131230 is about 10105.9997031466. Note that the first 3 decimals coincide. The cubic root of 102131230 is about 467.4331626832.

Adding to 102131230 its reverse (32131201), we get a palindrome (134262431).

The spelling of 102131230 in words is "one hundred two million, one hundred thirty-one thousand, two hundred thirty".