123045431233 has 4 divisors (see below), whose sum is σ = 123260922928. Its totient is φ = 122829939540.

The previous prime is 123045431189. The next prime is 123045431287. The reversal of 123045431233 is 332134540321.

It is a happy number.

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: 332134540321 = 64187 ⋅5174483.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123045431233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123045431195 and 123045431204.

It is not an unprimeable number, because it can be changed into a prime (123045431833) 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, 107744991 + ... + 107746132.

It is an arithmetic number, because the mean of its divisors is an integer number (30815230732).

Almost surely, 2^123045431233 is an apocalyptic number.

It is an amenable number.

123045431233 is a deficient number, since it is larger than the sum of its proper divisors (215491695).

123045431233 is an equidigital number, since it uses as much as digits as its factorization.

123045431233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215491694.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 123045431233 its reverse (332134540321), we get a palindrome (455179971554).

The spelling of 123045431233 in words is "one hundred twenty-three billion, forty-five million, four hundred thirty-one thousand, two hundred thirty-three".