102130511 has 16 divisors (see below), whose sum is σ = 122631168. Its totient is φ = 83160000.

The previous prime is 102130499. The next prime is 102130571. The reversal of 102130511 is 115031201.

It is a de Polignac number, because none of the positive numbers 2^k-102130511 is a prime.

It is a super-2 number, since 2×102130511² = 20861282554242242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102130571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22211 + ... + 26411.

It is an arithmetic number, because the mean of its divisors is an integer number (7664448).

Almost surely, 2^102130511 is an apocalyptic number.

102130511 is a deficient number, since it is larger than the sum of its proper divisors (20500657).

102130511 is a wasteful number, since it uses less digits than its factorization.

102130511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4382.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 102130511 is about 10105.9641301560. The cubic root of 102130511 is about 467.4320657766.

Adding to 102130511 its reverse (115031201), we get a palindrome (217161712).

The spelling of 102130511 in words is "one hundred two million, one hundred thirty thousand, five hundred eleven".