15200231231 has 2 divisors, whose sum is σ = 15200231232. Its totient is φ = 15200231230.

The previous prime is 15200231213. The next prime is 15200231261. The reversal of 15200231231 is 13213200251.

15200231231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (15200231213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (13213200251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15200231231 is a prime.

It is a super-2 number, since 2×15200231231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15200231201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7600115615 + 7600115616.

It is an arithmetic number, because the mean of its divisors is an integer number (7600115616).

Almost surely, 2^15200231231 is an apocalyptic number.

15200231231 is a deficient number, since it is larger than the sum of its proper divisors (1).

15200231231 is an equidigital number, since it uses as much as digits as its factorization.

15200231231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 15200231231 its reverse (13213200251), we get a palindrome (28413431482).

The spelling of 15200231231 in words is "fifteen billion, two hundred million, two hundred thirty-one thousand, two hundred thirty-one".