1313130432020 has 72 divisors (see below), whose sum is σ = 3031849941792. Its totient is φ = 477376320960.

The previous prime is 1313130431999. The next prime is 1313130432023. The reversal of 1313130432020 is 202340313131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313130432023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9385499 + ... + 9524381.

Almost surely, 2^{1313130432020} is an apocalyptic number.

1313130432020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313130432020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515924970896).

1313130432020 is an abundant number, since it is smaller than the sum of its proper divisors (1718719509772).

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

1313130432020 is a wasteful number, since it uses less digits than its factorization.

1313130432020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142821 (or 142808 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1313130432020 its reverse (202340313131), we get a palindrome (1515470745151).

The spelling of 1313130432020 in words is "one trillion, three hundred thirteen billion, one hundred thirty million, four hundred thirty-two thousand, twenty".