1021012020023 has 2 divisors, whose sum is σ = 1021012020024. Its totient is φ = 1021012020022.

The previous prime is 1021012019969. The next prime is 1021012020031. The reversal of 1021012020023 is 3200202101201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021012020023 - 2²⁴ = 1020995242807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021012020053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510506010011 + 510506010012.

It is an arithmetic number, because the mean of its divisors is an integer number (510506010012).

Almost surely, 2^{1021012020023} is an apocalyptic number.

1021012020023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021012020023 is an equidigital number, since it uses as much as digits as its factorization.

1021012020023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1021012020023 its reverse (3200202101201), we get a palindrome (4221214121224).

The spelling of 1021012020023 in words is "one trillion, twenty-one billion, twelve million, twenty thousand, twenty-three".