11401404234231 has 24 divisors (see below), whose sum is σ = 16814149140096. Its totient is φ = 6815285115840.

The previous prime is 11401404234203. The next prime is 11401404234247. The reversal of 11401404234231 is 13243240410411.

It is a happy number.

It is not a de Polignac number, because 11401404234231 - 2²² = 11401400039927 is a prime.

It is a super-2 number, since 2×11401404234231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401404234251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32240835 + ... + 32592548.

It is an arithmetic number, because the mean of its divisors is an integer number (700589547504).

Almost surely, 2^{11401404234231} is an apocalyptic number.

11401404234231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11401404234231 is a deficient number, since it is larger than the sum of its proper divisors (5412744905865).

11401404234231 is an equidigital number, since it uses as much as digits as its factorization.

11401404234231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64833543 (or 64833470 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 11401404234231 its reverse (13243240410411), we get a palindrome (24644644644642).

The spelling of 11401404234231 in words is "eleven trillion, four hundred one billion, four hundred four million, two hundred thirty-four thousand, two hundred thirty-one".