130202931 has 8 divisors (see below), whose sum is σ = 181152000. Its totient is φ = 83027912.

The previous prime is 130202903. The next prime is 130202971. The reversal of 130202931 is 139202031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130202931 - 2⁷ = 130202803 is a prime.

It is a super-2 number, since 2×130202931² = 33905606481981522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130202898 and 130202907.

It is not an unprimeable number, because it can be changed into a prime (130202971) 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, 943431 + ... + 943568.

It is an arithmetic number, because the mean of its divisors is an integer number (22644000).

Almost surely, 2^130202931 is an apocalyptic number.

130202931 is a deficient number, since it is larger than the sum of its proper divisors (50949069).

130202931 is a wasteful number, since it uses less digits than its factorization.

130202931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887025.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 130202931 is about 11410.6498938492. The cubic root of 130202931 is about 506.8431564766.

Adding to 130202931 its reverse (139202031), we get a palindrome (269404962).

It can be divided in two parts, 13020 and 2931, that added together give a palindrome (15951).

The spelling of 130202931 in words is "one hundred thirty million, two hundred two thousand, nine hundred thirty-one".