123332131 has 4 divisors (see below), whose sum is σ = 132819232. Its totient is φ = 113845032.

The previous prime is 123332129. The next prime is 123332149. The reversal of 123332131 is 131233321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123332131 - 2¹ = 123332129 is a prime.

It is a super-2 number, since 2×123332131² = 30421629074002322, which contains 22 as substring.

It is the 11106-th Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 123332099 and 123332108.

It is not an unprimeable number, because it can be changed into a prime (123332101) by changing a digit.

It is a nontrivial repunit in base 11105.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4743531 + ... + 4743556.

It is an arithmetic number, because the mean of its divisors is an integer number (33204808).

Almost surely, 2^123332131 is an apocalyptic number.

123332131 is a deficient number, since it is larger than the sum of its proper divisors (9487101).

123332131 is an equidigital number, since it uses as much as digits as its factorization.

123332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487100.

The product of its digits is 324, while the sum is 19.

The square root of 123332131 is about 11105.5000337671. The cubic root of 123332131 is about 497.7662098918.

Adding to 123332131 its reverse (131233321), we get a palindrome (254565452).

The spelling of 123332131 in words is "one hundred twenty-three million, three hundred thirty-two thousand, one hundred thirty-one".