1311423364620 has 144 divisors (see below), whose sum is σ = 4212512111808. Its totient is φ = 329100226560.

The previous prime is 1311423364607. The next prime is 1311423364633. The reversal of 1311423364620 is 264633241131.

1311423364620 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 4 + 2 + 3 + 3 + 646 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1311423364607) and next prime (1311423364633).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29724217 + ... + 29768303.

It is an arithmetic number, because the mean of its divisors is an integer number (29253556332).

Almost surely, 2^{1311423364620} is an apocalyptic number.

1311423364620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311423364620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2106256055904).

1311423364620 is an abundant number, since it is smaller than the sum of its proper divisors (2901088747188).

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

1311423364620 is a wasteful number, since it uses less digits than its factorization.

1311423364620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53840 (or 53835 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 1311423364620 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred sixty-four thousand, six hundred twenty".