11061601731 has 16 divisors (see below), whose sum is σ = 16392431520. Its totient is φ = 7372208160.

The previous prime is 11061601723. The next prime is 11061601739. The reversal of 11061601731 is 13710616011.

11061601731 is a `hidden beast` number, since 1 + 1 + 0 + 616 + 0 + 17 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (11061601723) and next prime (11061601739).

It is not a de Polignac number, because 11061601731 - 2³ = 11061601723 is a prime.

It is a super-2 number, since 2×11061601731² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11061601695 and 11061601704.

It is not an unprimeable number, because it can be changed into a prime (11061601739) 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, 34261 + ... + 152633.

It is an arithmetic number, because the mean of its divisors is an integer number (1024526970).

Almost surely, 2^11061601731 is an apocalyptic number.

11061601731 is a deficient number, since it is larger than the sum of its proper divisors (5330829789).

11061601731 is a wasteful number, since it uses less digits than its factorization.

11061601731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121843 (or 121837 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The spelling of 11061601731 in words is "eleven billion, sixty-one million, six hundred one thousand, seven hundred thirty-one".