11312603898 has 32 divisors (see below), whose sum is σ = 22767042816. Its totient is φ = 3747299328.

The previous prime is 11312603851. The next prime is 11312603899. The reversal of 11312603898 is 89830621311.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11312603899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659215 + ... + 676157.

It is an arithmetic number, because the mean of its divisors is an integer number (711470088).

Almost surely, 2^11312603898 is an apocalyptic number.

11312603898 is an abundant number, since it is smaller than the sum of its proper divisors (11454438918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312603898 is a wasteful number, since it uses less digits than its factorization.

11312603898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17638.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 11312603898 in words is "eleven billion, three hundred twelve million, six hundred three thousand, eight hundred ninety-eight".