1355220132320 has 48 divisors (see below), whose sum is σ = 3202537836960. Its totient is φ = 541947477504.

The previous prime is 1355220132317. The next prime is 1355220132323. The reversal of 1355220132320 is 232310225531.

It is an interprime number because it is at equal distance from previous prime (1355220132317) and next prime (1355220132323).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355220132323) 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, 478235 + ... + 1714394.

It is an arithmetic number, because the mean of its divisors is an integer number (66719538270).

Almost surely, 2^{1355220132320} is an apocalyptic number.

1355220132320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1355220132320 is an abundant number, since it is smaller than the sum of its proper divisors (1847317704640).

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

1355220132320 is a wasteful number, since it uses less digits than its factorization.

1355220132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196507 (or 2196499 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 1355220132320 its reverse (232310225531), we get a palindrome (1587530357851).

The spelling of 1355220132320 in words is "one trillion, three hundred fifty-five billion, two hundred twenty million, one hundred thirty-two thousand, three hundred twenty".