1311620461356 has 24 divisors (see below), whose sum is σ = 3061926992880. Its totient is φ = 436995499072.

The previous prime is 1311620461351. The next prime is 1311620461357. The reversal of 1311620461356 is 6531640261131.

It is not an unprimeable number, because it can be changed into a prime (1311620461351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26389311 + ... + 26438966.

It is an arithmetic number, because the mean of its divisors is an integer number (127580291370).

Almost surely, 2^{1311620461356} is an apocalyptic number.

It is an amenable number.

1311620461356 is an abundant number, since it is smaller than the sum of its proper divisors (1750306531524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311620461356 is a wasteful number, since it uses less digits than its factorization.

1311620461356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52830353 (or 52830351 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 1311620461356 in words is "one trillion, three hundred eleven billion, six hundred twenty million, four hundred sixty-one thousand, three hundred fifty-six".