1311355520022 has 16 divisors (see below), whose sum is σ = 2623941807552. Its totient is φ = 436913378760.

The previous prime is 1311355519961. The next prime is 1311355520023. The reversal of 1311355520022 is 2200255531131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311355520023) 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, 51268128 + ... + 51293699.

It is an arithmetic number, because the mean of its divisors is an integer number (163996362972).

Almost surely, 2^{1311355520022} is an apocalyptic number.

1311355520022 is an abundant number, since it is smaller than the sum of its proper divisors (1312586287530).

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

1311355520022 is a wasteful number, since it uses less digits than its factorization.

1311355520022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102563963.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 1311355520022 in words is "one trillion, three hundred eleven billion, three hundred fifty-five million, five hundred twenty thousand, twenty-two".