1020013031 has 2 divisors, whose sum is σ = 1020013032. Its totient is φ = 1020013030.

The previous prime is 1020012991. The next prime is 1020013061. The reversal of 1020013031 is 1303100201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020013031 is a prime.

It is a super-2 number, since 2×1020013031² = 2080853166819613922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020013061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510006515 + 510006516.

It is an arithmetic number, because the mean of its divisors is an integer number (510006516).

Almost surely, 2^1020013031 is an apocalyptic number.

1020013031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020013031 is an equidigital number, since it uses as much as digits as its factorization.

1020013031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1020013031 is about 31937.6428529095. The cubic root of 1020013031 is about 1006.6269962414.

Adding to 1020013031 its reverse (1303100201), we get a palindrome (2323113232).

The spelling of 1020013031 in words is "one billion, twenty million, thirteen thousand, thirty-one".