11342556431 has 4 divisors (see below), whose sum is σ = 11343104952. Its totient is φ = 11342007912.

The previous prime is 11342556419. The next prime is 11342556517. The reversal of 11342556431 is 13465524311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13465524311 = 6029 ⋅2233459.

It is a cyclic number.

It is not a de Polignac number, because 11342556431 - 2¹⁸ = 11342294287 is a prime.

It is a super-2 number, since 2×11342556431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11342556391 and 11342556400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11342556131) 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, 241976 + ... + 285021.

It is an arithmetic number, because the mean of its divisors is an integer number (2835776238).

Almost surely, 2^11342556431 is an apocalyptic number.

11342556431 is a deficient number, since it is larger than the sum of its proper divisors (548521).

11342556431 is an equidigital number, since it uses as much as digits as its factorization.

11342556431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548520.

The product of its digits is 43200, while the sum is 35.

The spelling of 11342556431 in words is "eleven billion, three hundred forty-two million, five hundred fifty-six thousand, four hundred thirty-one".