1030311203231 has 2 divisors, whose sum is σ = 1030311203232. Its totient is φ = 1030311203230.

The previous prime is 1030311203179. The next prime is 1030311203297. The reversal of 1030311203231 is 1323021130301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030311203231 is a prime.

It is a super-2 number, since 2×1030311203231² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030011203231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515155601615 + 515155601616.

It is an arithmetic number, because the mean of its divisors is an integer number (515155601616).

Almost surely, 2^{1030311203231} is an apocalyptic number.

1030311203231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030311203231 is an equidigital number, since it uses as much as digits as its factorization.

1030311203231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1030311203231 its reverse (1323021130301), we get a palindrome (2353332333532).

The spelling of 1030311203231 in words is "one trillion, thirty billion, three hundred eleven million, two hundred three thousand, two hundred thirty-one".