11423213303431 has 4 divisors (see below), whose sum is σ = 11423251320264. Its totient is φ = 11423175286600.

The previous prime is 11423213303423. The next prime is 11423213303459. The reversal of 11423213303431 is 13430331232411.

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 11423213303431 - 2³ = 11423213303423 is a prime.

It is a super-2 number, since 2×11423213303431² (a number of 27 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 = 11423213303393 and 11423213303402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423213303231) 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, 18554080 + ... + 19159861.

It is an arithmetic number, because the mean of its divisors is an integer number (2855812830066).

Almost surely, 2^{11423213303431} is an apocalyptic number.

11423213303431 is a deficient number, since it is larger than the sum of its proper divisors (38016833).

11423213303431 is an equidigital number, since it uses as much as digits as its factorization.

11423213303431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38016832.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 11423213303431 its reverse (13430331232411), we get a palindrome (24853544535842).

The spelling of 11423213303431 in words is "eleven trillion, four hundred twenty-three billion, two hundred thirteen million, three hundred three thousand, four hundred thirty-one".