123232013 has 4 divisors (see below), whose sum is σ = 123920640. Its totient is φ = 122543388.

The previous prime is 123231973. The next prime is 123232027. The reversal of 123232013 is 310232321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310232321 = 7 ⋅44318903.

It is a cyclic number.

It is not a de Polignac number, because 123232013 - 2¹⁴ = 123215629 is a prime.

It is a super-2 number, since 2×123232013² = 30372258056064338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123231982 and 123232000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123232033) 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, 344045 + ... + 344402.

It is an arithmetic number, because the mean of its divisors is an integer number (30980160).

Almost surely, 2^123232013 is an apocalyptic number.

It is an amenable number.

123232013 is a deficient number, since it is larger than the sum of its proper divisors (688627).

123232013 is an equidigital number, since it uses as much as digits as its factorization.

123232013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688626.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123232013 is about 11100.9915322912. The cubic root of 123232013 is about 497.6314819607.

Adding to 123232013 its reverse (310232321), we get a palindrome (433464334).

The spelling of 123232013 in words is "one hundred twenty-three million, two hundred thirty-two thousand, thirteen".