1311430040432 has 10 divisors (see below), whose sum is σ = 2540895703368. Its totient is φ = 655715020208.

The previous prime is 1311430040383. The next prime is 1311430040447. The reversal of 1311430040432 is 2340400341131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40982188748 + ... + 40982188779.

Almost surely, 2^{1311430040432} is an apocalyptic number.

It is an amenable number.

1311430040432 is a deficient number, since it is larger than the sum of its proper divisors (1229465662936).

1311430040432 is an equidigital number, since it uses as much as digits as its factorization.

1311430040432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81964377535 (or 81964377529 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1311430040432 its reverse (2340400341131), we get a palindrome (3651830381563).

The spelling of 1311430040432 in words is "one trillion, three hundred eleven billion, four hundred thirty million, forty thousand, four hundred thirty-two".