1020313111031 has 2 divisors, whose sum is σ = 1020313111032. Its totient is φ = 1020313111030.

The previous prime is 1020313111003. The next prime is 1020313111189. The reversal of 1020313111031 is 1301113130201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020313111031 - 2³⁰ = 1019239369207 is a prime.

It is a super-2 number, since 2×1020313111031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020313111331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510156555515 + 510156555516.

It is an arithmetic number, because the mean of its divisors is an integer number (510156555516).

Almost surely, 2^{1020313111031} is an apocalyptic number.

1020313111031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020313111031 is an equidigital number, since it uses as much as digits as its factorization.

1020313111031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1020313111031 its reverse (1301113130201), we get a palindrome (2321426241232).

The spelling of 1020313111031 in words is "one trillion, twenty billion, three hundred thirteen million, one hundred eleven thousand, thirty-one".