1331323003231 has 16 divisors (see below), whose sum is σ = 1511017200000. Its totient is φ = 1162825923168.

The previous prime is 1331323003217. The next prime is 1331323003247. The reversal of 1331323003231 is 1323003231331.

It is a de Polignac number, because none of the positive numbers 2^k-1331323003231 is a prime.

It is a super-2 number, since 2×1331323003231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331323003196 and 1331323003205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331323003831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3054481 + ... + 3463018.

It is an arithmetic number, because the mean of its divisors is an integer number (94438575000).

Almost surely, 2^{1331323003231} is an apocalyptic number.

1331323003231 is a deficient number, since it is larger than the sum of its proper divisors (179694196769).

1331323003231 is a wasteful number, since it uses less digits than its factorization.

1331323003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518358.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1331323003231 its reverse (1323003231331), we get a palindrome (2654326234562).

The spelling of 1331323003231 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, three thousand, two hundred thirty-one".