12401332131111 has 120 divisors (see below), whose sum is σ = 21178090203120. Its totient is φ = 6436153785600.

The previous prime is 12401332131077. The next prime is 12401332131143. The reversal of 12401332131111 is 11113123310421.

It is not a de Polignac number, because 12401332131111 - 2¹⁷ = 12401332000039 is a prime.

It is a super-2 number, since 2×12401332131111² (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 (12401332131151) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3084139281 + ... + 3084143301.

It is an arithmetic number, because the mean of its divisors is an integer number (176484085026).

Almost surely, 2^{12401332131111} is an apocalyptic number.

12401332131111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12401332131111 is a deficient number, since it is larger than the sum of its proper divisors (8776758072009).

12401332131111 is an equidigital number, since it uses as much as digits as its factorization.

12401332131111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515 (or 5475 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 12401332131111 its reverse (11113123310421), we get a palindrome (23514455441532).

The spelling of 12401332131111 in words is "twelve trillion, four hundred one billion, three hundred thirty-two million, one hundred thirty-one thousand, one hundred eleven".