11312535501 has 12 divisors (see below), whose sum is σ = 16371579328. Its totient is φ = 7527267144.

The previous prime is 11312535497. The next prime is 11312535527. The reversal of 11312535501 is 10553521311.

11312535501 is a `hidden beast` number, since 1 + 1 + 3 + 125 + 35 + 501 = 666.

It is not a de Polignac number, because 11312535501 - 2² = 11312535497 is a prime.

It is a super-2 number, since 2×11312535501² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312535601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1196965 + ... + 1206378.

Almost surely, 2^11312535501 is an apocalyptic number.

It is an amenable number.

11312535501 is a deficient number, since it is larger than the sum of its proper divisors (5059043827).

11312535501 is a wasteful number, since it uses less digits than its factorization.

11312535501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403872 (or 2403869 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The spelling of 11312535501 in words is "eleven billion, three hundred twelve million, five hundred thirty-five thousand, five hundred one".