1021010111039 has 2 divisors, whose sum is σ = 1021010111040. Its totient is φ = 1021010111038.

The previous prime is 1021010110993. The next prime is 1021010111047. The reversal of 1021010111039 is 9301110101201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021010111039 is a prime.

It is a super-2 number, since 2×1021010111039² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021010111039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021010110039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510505055519 + 510505055520.

It is an arithmetic number, because the mean of its divisors is an integer number (510505055520).

Almost surely, 2^{1021010111039} is an apocalyptic number.

1021010111039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021010111039 is an equidigital number, since it uses as much as digits as its factorization.

1021010111039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 1021010111039 in words is "one trillion, twenty-one billion, ten million, one hundred eleven thousand, thirty-nine".