123310333021 has 16 divisors (see below), whose sum is σ = 135620127360. Its totient is φ = 111733061440.

The previous prime is 123310332967. The next prime is 123310333037. The reversal of 123310333021 is 120333013321.

It is a cyclic number.

It is not a de Polignac number, because 123310333021 - 2¹¹ = 123310330973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123310332983 and 123310333001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123310333061) 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 15 ways as a sum of consecutive naturals, for example, 1708735 + ... + 1779436.

It is an arithmetic number, because the mean of its divisors is an integer number (8476257960).

Almost surely, 2^123310333021 is an apocalyptic number.

It is an amenable number.

123310333021 is a deficient number, since it is larger than the sum of its proper divisors (12309794339).

123310333021 is a wasteful number, since it uses less digits than its factorization.

123310333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488276.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 123310333021 its reverse (120333013321), we get a palindrome (243643346342).

The spelling of 123310333021 in words is "one hundred twenty-three billion, three hundred ten million, three hundred thirty-three thousand, twenty-one".