1320231331302 has 128 divisors (see below), whose sum is σ = 2888021606400. Its totient is φ = 399938964480.

The previous prime is 1320231331273. The next prime is 1320231331303. The reversal of 1320231331302 is 2031331320231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320231331303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 814454052 + ... + 814455672.

It is an arithmetic number, because the mean of its divisors is an integer number (22562668800).

Almost surely, 2^{1320231331302} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320231331302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444010803200).

1320231331302 is an abundant number, since it is smaller than the sum of its proper divisors (1567790275098).

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

1320231331302 is a wasteful number, since it uses less digits than its factorization.

1320231331302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1320231331302 its reverse (2031331320231), we get a palindrome (3351562651533).

The spelling of 1320231331302 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, three hundred thirty-one thousand, three hundred two".