15432230531 has 2 divisors, whose sum is σ = 15432230532. Its totient is φ = 15432230530.

The previous prime is 15432230519. The next prime is 15432230591. The reversal of 15432230531 is 13503223451.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (13503223451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15432230531 - 2³⁰ = 14358488707 is a prime.

It is a super-2 number, since 2×15432230531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15432230494 and 15432230503.

It is not a weakly prime, because it can be changed into another prime (15432230591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7716115265 + 7716115266.

It is an arithmetic number, because the mean of its divisors is an integer number (7716115266).

Almost surely, 2^15432230531 is an apocalyptic number.

15432230531 is a deficient number, since it is larger than the sum of its proper divisors (1).

15432230531 is an equidigital number, since it uses as much as digits as its factorization.

15432230531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 15432230531 its reverse (13503223451), we get a palindrome (28935453982).

The spelling of 15432230531 in words is "fifteen billion, four hundred thirty-two million, two hundred thirty thousand, five hundred thirty-one".