130111431 has 4 divisors (see below), whose sum is σ = 173481912. Its totient is φ = 86740952.

The previous prime is 130111403. The next prime is 130111439. The reversal of 130111431 is 134111031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130111431 - 2¹¹ = 130109383 is a prime.

It is a super-2 number, since 2×130111431² = 33857968953735522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130111431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130111439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21685236 + ... + 21685241.

It is an arithmetic number, because the mean of its divisors is an integer number (43370478).

Almost surely, 2^130111431 is an apocalyptic number.

130111431 is a deficient number, since it is larger than the sum of its proper divisors (43370481).

130111431 is an equidigital number, since it uses as much as digits as its factorization.

130111431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43370480.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 130111431 is about 11406.6397769019. The cubic root of 130111431 is about 506.7244007867.

Adding to 130111431 its reverse (134111031), we get a palindrome (264222462).

The spelling of 130111431 in words is "one hundred thirty million, one hundred eleven thousand, four hundred thirty-one".