123021313213 has 8 divisors (see below), whose sum is σ = 123186621600. Its totient is φ = 122856110640.

The previous prime is 123021313171. The next prime is 123021313231. The reversal of 123021313213 is 312313120321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123021313213 - 2²⁵ = 122987758781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021313253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2454106 + ... + 2503732.

It is an arithmetic number, because the mean of its divisors is an integer number (15398327700).

Almost surely, 2^123021313213 is an apocalyptic number.

It is an amenable number.

123021313213 is a deficient number, since it is larger than the sum of its proper divisors (165308387).

123021313213 is a wasteful number, since it uses less digits than its factorization.

123021313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52907.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123021313213 its reverse (312313120321), we get a palindrome (435334433534).

The spelling of 123021313213 in words is "one hundred twenty-three billion, twenty-one million, three hundred thirteen thousand, two hundred thirteen".