15240232001 has 2 divisors, whose sum is σ = 15240232002. Its totient is φ = 15240232000.

The previous prime is 15240231971. The next prime is 15240232013. The reversal of 15240232001 is 10023204251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11637231376 + 3603000625 = 107876^2 + 60025^2 .

It is a cyclic number.

It is not a de Polignac number, because 15240232001 - 2²⁶ = 15173123137 is a prime.

It is not a weakly prime, because it can be changed into another prime (15240232061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620116000 + 7620116001.

It is an arithmetic number, because the mean of its divisors is an integer number (7620116001).

Almost surely, 2^15240232001 is an apocalyptic number.

It is an amenable number.

15240232001 is a deficient number, since it is larger than the sum of its proper divisors (1).

15240232001 is an equidigital number, since it uses as much as digits as its factorization.

15240232001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 15240232001 its reverse (10023204251), we get a palindrome (25263436252).

The spelling of 15240232001 in words is "fifteen billion, two hundred forty million, two hundred thirty-two thousand, one".