11233345431 has 32 divisors (see below), whose sum is σ = 19317542400. Its totient is φ = 5634276480.

The previous prime is 11233345423. The next prime is 11233345451. The reversal of 11233345431 is 13454333211.

It is a happy number.

It is not a de Polignac number, because 11233345431 - 2³ = 11233345423 is a prime.

It is a super-2 number, since 2×11233345431² (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 (11233345451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 831736 + ... + 845133.

It is an arithmetic number, because the mean of its divisors is an integer number (603673200).

Almost surely, 2^11233345431 is an apocalyptic number.

11233345431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11233345431 is a deficient number, since it is larger than the sum of its proper divisors (8084196969).

11233345431 is a wasteful number, since it uses less digits than its factorization.

11233345431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676919.

The product of its digits is 12960, while the sum is 30.

Adding to 11233345431 its reverse (13454333211), we get a palindrome (24687678642).

The spelling of 11233345431 in words is "eleven billion, two hundred thirty-three million, three hundred forty-five thousand, four hundred thirty-one".