12400044401135 has 4 divisors (see below), whose sum is σ = 14880053281368. Its totient is φ = 9920035520904.

The previous prime is 12400044401099. The next prime is 12400044401149. The reversal of 12400044401135 is 53110444000421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12400044401135 - 2²⁸ = 12399775965679 is a prime.

It is a super-2 number, since 2×12400044401135² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12400044401098 and 12400044401107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240004440109 + ... + 1240004440118.

It is an arithmetic number, because the mean of its divisors is an integer number (3720013320342).

Almost surely, 2^{12400044401135} is an apocalyptic number.

12400044401135 is a deficient number, since it is larger than the sum of its proper divisors (2480008880233).

12400044401135 is an equidigital number, since it uses as much as digits as its factorization.

12400044401135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480008880232.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 12400044401135 its reverse (53110444000421), we get a palindrome (65510488401556).

The spelling of 12400044401135 in words is "twelve trillion, four hundred billion, forty-four million, four hundred one thousand, one hundred thirty-five".