102130668 has 18 divisors (see below), whose sum is σ = 258163724. Its totient is φ = 34043544.

The previous prime is 102130627. The next prime is 102130669. The reversal of 102130668 is 866031201.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×102130668² = 20861346692252448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102130669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1418446 + ... + 1418517.

Almost surely, 2^102130668 is an apocalyptic number.

102130668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

102130668 is an abundant number, since it is smaller than the sum of its proper divisors (156033056).

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

102130668 is a wasteful number, since it uses less digits than its factorization.

102130668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836973 (or 2836968 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 102130668 is about 10105.9718978434. The cubic root of 102130668 is about 467.4323052963.

Adding to 102130668 its reverse (866031201), we get a palindrome (968161869).

The spelling of 102130668 in words is "one hundred two million, one hundred thirty thousand, six hundred sixty-eight".