11430423431 has 8 divisors (see below), whose sum is σ = 13416404640. Its totient is φ = 9532708128.

The previous prime is 11430423401. The next prime is 11430423437. The reversal of 11430423431 is 13432403411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11430423431 - 2²² = 11426229127 is a prime.

It is a super-2 number, since 2×11430423431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11430423431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430423437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22066196 + ... + 22066713.

It is an arithmetic number, because the mean of its divisors is an integer number (1677050580).

Almost surely, 2^11430423431 is an apocalyptic number.

11430423431 is a deficient number, since it is larger than the sum of its proper divisors (1985981209).

11430423431 is an equidigital number, since it uses as much as digits as its factorization.

11430423431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44132953.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 11430423431 its reverse (13432403411), we get a palindrome (24862826842).

The spelling of 11430423431 in words is "eleven billion, four hundred thirty million, four hundred twenty-three thousand, four hundred thirty-one".