1331020030331 has 2 divisors, whose sum is σ = 1331020030332. Its totient is φ = 1331020030330.

The previous prime is 1331020030297. The next prime is 1331020030367. The reversal of 1331020030331 is 1330300201331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331020030331 is a prime.

It is a super-2 number, since 2×1331020030331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1331020030391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665510015165 + 665510015166.

It is an arithmetic number, because the mean of its divisors is an integer number (665510015166).

Almost surely, 2^{1331020030331} is an apocalyptic number.

1331020030331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331020030331 is an equidigital number, since it uses as much as digits as its factorization.

1331020030331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 1331020030331 its reverse (1330300201331), we get a palindrome (2661320231662).

The spelling of 1331020030331 in words is "one trillion, three hundred thirty-one billion, twenty million, thirty thousand, three hundred thirty-one".