1321352051250 has 320 divisors, whose sum is σ = 4359385350144. Its totient is φ = 258414720000.

The previous prime is 1321352051249. The next prime is 1321352051291. The reversal of 1321352051250 is 521502531231.

It is a super-3 number, since 3×1321352051250³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4774159 + ... + 5043341.

Almost surely, 2^{1321352051250} is an apocalyptic number.

1321352051250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1321352051250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179692675072).

1321352051250 is an abundant number, since it is smaller than the sum of its proper divisors (3038033298894).

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

1321352051250 is a wasteful number, since it uses less digits than its factorization.

1321352051250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269243 (or 269228 counting only the distinct ones).

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

Adding to 1321352051250 its reverse (521502531231), we get a palindrome (1842854582481).

The spelling of 1321352051250 in words is "one trillion, three hundred twenty-one billion, three hundred fifty-two million, fifty-one thousand, two hundred fifty".