115311603 has 32 divisors (see below), whose sum is σ = 171689472. Its totient is φ = 68256000.

The previous prime is 115311583. The next prime is 115311607. The reversal of 115311603 is 306113511.

It is not a de Polignac number, because 115311603 - 2¹⁰ = 115310579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115311603.

It is not an unprimeable number, because it can be changed into a prime (115311607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363601 + ... + 363917.

It is an arithmetic number, because the mean of its divisors is an integer number (5365296).

Almost surely, 2^115311603 is an apocalyptic number.

115311603 is a deficient number, since it is larger than the sum of its proper divisors (56377869).

115311603 is a wasteful number, since it uses less digits than its factorization.

115311603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 115311603 is about 10738.3240312444. The cubic root of 115311603 is about 486.7332367079.

The spelling of 115311603 in words is "one hundred fifteen million, three hundred eleven thousand, six hundred three".