15013520231 has 2 divisors, whose sum is σ = 15013520232. Its totient is φ = 15013520230.

The previous prime is 15013520191. The next prime is 15013520237. The reversal of 15013520231 is 13202531051.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13202531051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15013520231 - 2⁶ = 15013520167 is a prime.

It is a super-2 number, since 2×15013520231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15013520197 and 15013520206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15013520237) 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 as a sum of consecutive naturals, namely, 7506760115 + 7506760116.

It is an arithmetic number, because the mean of its divisors is an integer number (7506760116).

Almost surely, 2^15013520231 is an apocalyptic number.

15013520231 is a deficient number, since it is larger than the sum of its proper divisors (1).

15013520231 is an equidigital number, since it uses as much as digits as its factorization.

15013520231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 15013520231 in words is "fifteen billion, thirteen million, five hundred twenty thousand, two hundred thirty-one".