11340555431 has 4 divisors (see below), whose sum is σ = 11345192352. Its totient is φ = 11335918512.

The previous prime is 11340555319. The next prime is 11340555451. The reversal of 11340555431 is 13455504311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13455504311 = 83983 ⋅160217.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11340555431 is a prime.

It is a super-2 number, since 2×11340555431² (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 (11340555451) 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, 2314790 + ... + 2319683.

It is an arithmetic number, because the mean of its divisors is an integer number (2836298088).

Almost surely, 2^11340555431 is an apocalyptic number.

11340555431 is a deficient number, since it is larger than the sum of its proper divisors (4636921).

11340555431 is an equidigital number, since it uses as much as digits as its factorization.

11340555431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636920.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 11340555431 in words is "eleven billion, three hundred forty million, five hundred fifty-five thousand, four hundred thirty-one".