1321364426250 has 160 divisors (see below), whose sum is σ = 3603897183744. Its totient is φ = 320212600000.

The previous prime is 1321364426237. The next prime is 1321364426273. The reversal of 1321364426250 is 526244631231.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1321364426199 and 1321364426208.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 173699947 + ... + 173707553.

Almost surely, 2^{1321364426250} is an apocalyptic number.

1321364426250 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 1321364426250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1801948591872).

1321364426250 is an abundant number, since it is smaller than the sum of its proper divisors (2282532757494).

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

1321364426250 is a wasteful number, since it uses less digits than its factorization.

1321364426250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11854 (or 11839 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 1321364426250 in words is "one trillion, three hundred twenty-one billion, three hundred sixty-four million, four hundred twenty-six thousand, two hundred fifty".