11312555305 has 8 divisors (see below), whose sum is σ = 13575861000. Its totient is φ = 9049514496.

The previous prime is 11312555249. The next prime is 11312555311. The reversal of 11312555305 is 50355521311.

It can be written as a sum of positive squares in 4 ways, for example, as 4362998809 + 6949556496 = 66053^2 + 83364^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11312555305 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44601 + ... + 156889.

It is an arithmetic number, because the mean of its divisors is an integer number (1696982625).

Almost surely, 2^11312555305 is an apocalyptic number.

It is an amenable number.

11312555305 is a deficient number, since it is larger than the sum of its proper divisors (2263305695).

11312555305 is a wasteful number, since it uses less digits than its factorization.

11312555305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132443.

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 11312555305 in words is "eleven billion, three hundred twelve million, five hundred fifty-five thousand, three hundred five".