11222431431 has 4 divisors (see below), whose sum is σ = 14963241912. Its totient is φ = 7481620952.

The previous prime is 11222431421. The next prime is 11222431433. The reversal of 11222431431 is 13413422211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11222431431 - 2¹⁰ = 11222430407 is a prime.

It is a super-2 number, since 2×11222431431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222431433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870405236 + ... + 1870405241.

It is an arithmetic number, because the mean of its divisors is an integer number (3740810478).

Almost surely, 2^11222431431 is an apocalyptic number.

11222431431 is a deficient number, since it is larger than the sum of its proper divisors (3740810481).

11222431431 is an equidigital number, since it uses as much as digits as its factorization.

11222431431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740810480.

The product of its digits is 1152, while the sum is 24.

Adding to 11222431431 its reverse (13413422211), we get a palindrome (24635853642).

The spelling of 11222431431 in words is "eleven billion, two hundred twenty-two million, four hundred thirty-one thousand, four hundred thirty-one".