1313819451250 has 40 divisors (see below), whose sum is σ = 2509087894236. Its totient is φ = 515612136000.

The previous prime is 1313819451239. The next prime is 1313819451257. The reversal of 1313819451250 is 521549183131.

It can be written as a sum of positive squares in 10 ways, for example, as 41983600201 + 1271835851049 = 204899^2 + 1127757^2 .

It is a super-2 number, since 2×1313819451250² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313819451197 and 1313819451206.

It is not an unprimeable number, because it can be changed into a prime (1313819451257) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9849369 + ... + 9981868.

Almost surely, 2^{1313819451250} is an apocalyptic number.

1313819451250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313819451250 is a deficient number, since it is larger than the sum of its proper divisors (1195268442986).

1313819451250 is an equidigital number, since it uses as much as digits as its factorization.

1313819451250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19831312 (or 19831297 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 1313819451250 in words is "one trillion, three hundred thirteen billion, eight hundred nineteen million, four hundred fifty-one thousand, two hundred fifty".