15130435231 has 4 divisors (see below), whose sum is σ = 15151248112. Its totient is φ = 15109622352.

The previous prime is 15130435223. The next prime is 15130435237. The reversal of 15130435231 is 13253403151.

It is a happy number.

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 15130435231 - 2³ = 15130435223 is a prime.

It is a super-3 number, since 3×15130435231³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15130435231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15130435237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10405350 + ... + 10406803.

It is an arithmetic number, because the mean of its divisors is an integer number (3787812028).

Almost surely, 2^15130435231 is an apocalyptic number.

15130435231 is a deficient number, since it is larger than the sum of its proper divisors (20812881).

15130435231 is an equidigital number, since it uses as much as digits as its factorization.

15130435231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20812880.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 15130435231 its reverse (13253403151), we get a palindrome (28383838382).

The spelling of 15130435231 in words is "fifteen billion, one hundred thirty million, four hundred thirty-five thousand, two hundred thirty-one".