1021110120923 has 2 divisors, whose sum is σ = 1021110120924. Its totient is φ = 1021110120922.

The previous prime is 1021110120913. The next prime is 1021110120931. The reversal of 1021110120923 is 3290210111201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021110120923 - 2¹⁰ = 1021110119899 is a prime.

It is a super-3 number, since 3×1021110120923³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1021110120913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510555060461 + 510555060462.

It is an arithmetic number, because the mean of its divisors is an integer number (510555060462).

Almost surely, 2^{1021110120923} is an apocalyptic number.

1021110120923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021110120923 is an equidigital number, since it uses as much as digits as its factorization.

1021110120923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 1021110120923 in words is "one trillion, twenty-one billion, one hundred ten million, one hundred twenty thousand, nine hundred twenty-three".