115242505403 has 2 divisors, whose sum is σ = 115242505404. Its totient is φ = 115242505402.

The previous prime is 115242505387. The next prime is 115242505423. The reversal of 115242505403 is 304505242511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115242505403 - 2⁴ = 115242505387 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115242505403.

It is not a weakly prime, because it can be changed into another prime (115242505423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57621252701 + 57621252702.

It is an arithmetic number, because the mean of its divisors is an integer number (57621252702).

Almost surely, 2^115242505403 is an apocalyptic number.

115242505403 is a deficient number, since it is larger than the sum of its proper divisors (1).

115242505403 is an equidigital number, since it uses as much as digits as its factorization.

115242505403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 115242505403 its reverse (304505242511), we get a palindrome (419747747914).

The spelling of 115242505403 in words is "one hundred fifteen billion, two hundred forty-two million, five hundred five thousand, four hundred three".