1021000101023 has 32 divisors (see below), whose sum is σ = 1195785566208. Its totient is φ = 853751808000.

The previous prime is 1021000101013. The next prime is 1021000101097. The reversal of 1021000101023 is 3201010001201.

It is not a de Polignac number, because 1021000101023 - 2¹⁴ = 1021000084639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021000100995 and 1021000101013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021000101013) 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 in 31 ways as a sum of consecutive naturals, for example, 19260611 + ... + 19313547.

It is an arithmetic number, because the mean of its divisors is an integer number (37368298944).

Almost surely, 2^{1021000101023} is an apocalyptic number.

1021000101023 is a deficient number, since it is larger than the sum of its proper divisors (174785465185).

1021000101023 is a wasteful number, since it uses less digits than its factorization.

1021000101023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53423.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1021000101023 its reverse (3201010001201), we get a palindrome (4222010102224).

The spelling of 1021000101023 in words is "one trillion, twenty-one billion, one hundred one thousand, twenty-three".