102131403 has 16 divisors (see below), whose sum is σ = 156374400. Its totient is φ = 58639680.

The previous prime is 102131389. The next prime is 102131411. The reversal of 102131403 is 304131201.

It is not a de Polignac number, because 102131403 - 2⁴ = 102131387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102131413) 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, 80818 + ... + 82071.

It is an arithmetic number, because the mean of its divisors is an integer number (9773400).

Almost surely, 2^102131403 is an apocalyptic number.

102131403 is a deficient number, since it is larger than the sum of its proper divisors (54242997).

102131403 is a wasteful number, since it uses less digits than its factorization.

102131403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162922.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 102131403 is about 10106.0082624150. The cubic root of 102131403 is about 467.4334266112.

Adding to 102131403 its reverse (304131201), we get a palindrome (406262604).

The spelling of 102131403 in words is "one hundred two million, one hundred thirty-one thousand, four hundred three".