1311434240125 has 32 divisors (see below), whose sum is σ = 1663266084480. Its totient is φ = 1032139468800.

The previous prime is 1311434240119. The next prime is 1311434240189. The reversal of 1311434240125 is 5210424341131.

It is a happy number.

It is not a de Polignac number, because 1311434240125 - 2²⁹ = 1310897369213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6338562 + ... + 6542188.

It is an arithmetic number, because the mean of its divisors is an integer number (51977065140).

Almost surely, 2^{1311434240125} is an apocalyptic number.

It is an amenable number.

1311434240125 is a deficient number, since it is larger than the sum of its proper divisors (351831844355).

1311434240125 is an equidigital number, since it uses as much as digits as its factorization.

1311434240125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204478 (or 204468 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 1311434240125 its reverse (5210424341131), we get a palindrome (6521858581256).

The spelling of 1311434240125 in words is "one trillion, three hundred eleven billion, four hundred thirty-four million, two hundred forty thousand, one hundred twenty-five".