1303431002120 has 48 divisors (see below), whose sum is σ = 3175666969860. Its totient is φ = 481266829056.

The previous prime is 1303431001993. The next prime is 1303431002123. The reversal of 1303431002120 is 212001343031.

It can be written as a sum of positive squares in 6 ways, for example, as 33126184036 + 1270304818084 = 182006^2 + 1127078^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1303431002092 and 1303431002101.

It is not an unprimeable number, because it can be changed into a prime (1303431002123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96400859 + ... + 96414378.

Almost surely, 2^{1303431002120} is an apocalyptic number.

1303431002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303431002120 is an abundant number, since it is smaller than the sum of its proper divisors (1872235967740).

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

1303431002120 is a wasteful number, since it uses less digits than its factorization.

1303431002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192815274 (or 192815257 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1303431002120 its reverse (212001343031), we get a palindrome (1515432345151).

The spelling of 1303431002120 in words is "one trillion, three hundred three billion, four hundred thirty-one million, two thousand, one hundred twenty".