1321337675240 has 64 divisors (see below), whose sum is σ = 3275395211520. Its totient is φ = 475729120000.

The previous prime is 1321337675221. The next prime is 1321337675269. The reversal of 1321337675240 is 425767331231.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 1321337675191 and 1321337675200.

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, 14822096 + ... + 14910975.

It is an arithmetic number, because the mean of its divisors is an integer number (51178050180).

Almost surely, 2^{1321337675240} is an apocalyptic number.

1321337675240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321337675240 is an abundant number, since it is smaller than the sum of its proper divisors (1954057536280).

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

1321337675240 is a wasteful number, since it uses less digits than its factorization.

1321337675240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29733194 (or 29733190 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 1321337675240 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-seven million, six hundred seventy-five thousand, two hundred forty".