11485345831 has 4 divisors (see below), whose sum is σ = 11486497464. Its totient is φ = 11484194200.

The previous prime is 11485345801. The next prime is 11485345847. The reversal of 11485345831 is 13854358411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13854358411 = 8923 ⋅1552657.

It is a cyclic number.

It is not a de Polignac number, because 11485345831 - 2¹¹ = 11485343783 is a prime.

It is a super-2 number, since 2×11485345831² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11485345801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560725 + ... + 580846.

It is an arithmetic number, because the mean of its divisors is an integer number (2871624366).

Almost surely, 2^11485345831 is an apocalyptic number.

11485345831 is a deficient number, since it is larger than the sum of its proper divisors (1151633).

11485345831 is a wasteful number, since it uses less digits than its factorization.

11485345831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151632.

The product of its digits is 230400, while the sum is 43.

The spelling of 11485345831 in words is "eleven billion, four hundred eighty-five million, three hundred forty-five thousand, eight hundred thirty-one".