123211313 has 8 divisors (see below), whose sum is σ = 123989760. Its totient is φ = 122436000.

The previous prime is 123211307. The next prime is 123211321. The reversal of 123211313 is 313112321.

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 123211313 - 2²⁰ = 122162737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123211291 and 123211300.

It is not an unprimeable number, because it can be changed into a prime (123211303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163688 + ... + 164438.

It is an arithmetic number, because the mean of its divisors is an integer number (15498720).

Almost surely, 2^123211313 is an apocalyptic number.

It is an amenable number.

123211313 is a deficient number, since it is larger than the sum of its proper divisors (778447).

123211313 is an equidigital number, since it uses as much as digits as its factorization.

123211313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567.

The product of its digits is 108, while the sum is 17.

The square root of 123211313 is about 11100.0591439866. The cubic root of 123211313 is about 497.6036170463.

Adding to 123211313 its reverse (313112321), we get a palindrome (436323634).

The spelling of 123211313 in words is "one hundred twenty-three million, two hundred eleven thousand, three hundred thirteen".