923101012021 has 4 divisors (see below), whose sum is σ = 923113496844. Its totient is φ = 923088527200.

The previous prime is 923101011947. The next prime is 923101012033. The reversal of 923101012021 is 120210101329.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120210101329 = 10289 ⋅11683361.

It can be written as a sum of positive squares in 2 ways, for example, as 421511279121 + 501589732900 = 649239^2 + 708230^2 .

It is a cyclic number.

It is not a de Polignac number, because 923101012021 - 2¹⁹ = 923100487733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 923101011983 and 923101012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923101015021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6130840 + ... + 6279601.

It is an arithmetic number, because the mean of its divisors is an integer number (230778374211).

Almost surely, 2^923101012021 is an apocalyptic number.

It is an amenable number.

923101012021 is a deficient number, since it is larger than the sum of its proper divisors (12484823).

923101012021 is a wasteful number, since it uses less digits than its factorization.

923101012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12484822.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 923101012021 in words is "nine hundred twenty-three billion, one hundred one million, twelve thousand, twenty-one".