1311423355660 has 48 divisors (see below), whose sum is σ = 3034097795232. Its totient is φ = 472159616000.

The previous prime is 1311423355657. The next prime is 1311423355679. The reversal of 1311423355660 is 665533241131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29487757 + ... + 29532196.

It is an arithmetic number, because the mean of its divisors is an integer number (63210370734).

Almost surely, 2^{1311423355660} is an apocalyptic number.

1311423355660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311423355660 is an abundant number, since it is smaller than the sum of its proper divisors (1722674439572).

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

1311423355660 is a wasteful number, since it uses less digits than its factorization.

1311423355660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59020074 (or 59020072 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

Adding to 1311423355660 its reverse (665533241131), we get a palindrome (1976956596791).

The spelling of 1311423355660 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred fifty-five thousand, six hundred sixty".