1320035311540 has 72 divisors (see below), whose sum is σ = 3096941611176. Its totient is φ = 472143724800.

The previous prime is 1320035311489. The next prime is 1320035311579. The reversal of 1320035311540 is 451135300231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 162547661584 + 1157487649956 = 403172^2 + 1075866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1320035311499 and 1320035311508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4323439 + ... + 4618678.

It is an arithmetic number, because the mean of its divisors is an integer number (43013077933).

Almost surely, 2^{1320035311540} is an apocalyptic number.

1320035311540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320035311540 is an abundant number, since it is smaller than the sum of its proper divisors (1776906299636).

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

1320035311540 is a wasteful number, since it uses less digits than its factorization.

1320035311540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8942209 (or 8942196 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 1320035311540 in words is "one trillion, three hundred twenty billion, thirty-five million, three hundred eleven thousand, five hundred forty".