123032100331 has 4 divisors (see below), whose sum is σ = 140608114672. Its totient is φ = 105456085992.

The previous prime is 123032100313. The next prime is 123032100343. The reversal of 123032100331 is 133001230321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133001230321 = 23879 ⋅5569799.

It is a cyclic number.

It is not a de Polignac number, because 123032100331 - 2¹¹ = 123032098283 is a prime.

It is a super-2 number, since 2×123032100331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123032100299 and 123032100308.

It is not an unprimeable number, because it can be changed into a prime (123032100371) 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, 8788007160 + ... + 8788007173.

It is an arithmetic number, because the mean of its divisors is an integer number (35152028668).

Almost surely, 2^123032100331 is an apocalyptic number.

123032100331 is a deficient number, since it is larger than the sum of its proper divisors (17576014341).

123032100331 is an equidigital number, since it uses as much as digits as its factorization.

123032100331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17576014340.

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

Adding to 123032100331 its reverse (133001230321), we get a palindrome (256033330652).

The spelling of 123032100331 in words is "one hundred twenty-three billion, thirty-two million, one hundred thousand, three hundred thirty-one".