123323333131 has 4 divisors (see below), whose sum is σ = 123861863200. Its totient is φ = 122784803064.

The previous prime is 123323333123. The next prime is 123323333137. The reversal of 123323333131 is 131333323321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131333323321 = 10463 ⋅12552167.

It is a cyclic number.

It is not a de Polignac number, because 123323333131 - 2³ = 123323333123 is a prime.

It is a super-2 number, since 2×123323333131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123323333131.

It is not an unprimeable number, because it can be changed into a prime (123323333137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269264691 + ... + 269265148.

It is an arithmetic number, because the mean of its divisors is an integer number (30965465800).

Almost surely, 2^123323333131 is an apocalyptic number.

123323333131 is a deficient number, since it is larger than the sum of its proper divisors (538530069).

123323333131 is an equidigital number, since it uses as much as digits as its factorization.

123323333131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538530068.

The product of its digits is 8748, while the sum is 28.

Adding to 123323333131 its reverse (131333323321), we get a palindrome (254656656452).

The spelling of 123323333131 in words is "one hundred twenty-three billion, three hundred twenty-three million, three hundred thirty-three thousand, one hundred thirty-one".