11403444231 has 12 divisors (see below), whose sum is σ = 16822102752. Its totient is φ = 7440544896.

The previous prime is 11403444223. The next prime is 11403444233. The reversal of 11403444231 is 13244430411.

It is not a de Polignac number, because 11403444231 - 2³ = 11403444223 is a prime.

It is a super-2 number, since 2×11403444231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11403444195 and 11403444204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403444233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13478826 + ... + 13479671.

It is an arithmetic number, because the mean of its divisors is an integer number (1401841896).

Almost surely, 2^11403444231 is an apocalyptic number.

11403444231 is a deficient number, since it is larger than the sum of its proper divisors (5418658521).

11403444231 is a wasteful number, since it uses less digits than its factorization.

11403444231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26958550 (or 26958547 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 11403444231 its reverse (13244430411), we get a palindrome (24647874642).

The spelling of 11403444231 in words is "eleven billion, four hundred three million, four hundred forty-four thousand, two hundred thirty-one".