123023435225 has 24 divisors (see below), whose sum is σ = 155385435648. Its totient is φ = 96599448000.

The previous prime is 123023435191. The next prime is 123023435243. The reversal of 123023435225 is 522534320321.

It is a de Polignac number, because none of the positive numbers 2^k-123023435225 is a prime.

It is a super-2 number, since 2×123023435225² (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 = 123023435191 and 123023435200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331400 + ... + 596550.

It is an arithmetic number, because the mean of its divisors is an integer number (6474393152).

Almost surely, 2^123023435225 is an apocalyptic number.

It is an amenable number.

123023435225 is a deficient number, since it is larger than the sum of its proper divisors (32362000423).

123023435225 is a wasteful number, since it uses less digits than its factorization.

123023435225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265505 (or 265500 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 123023435225 its reverse (522534320321), we get a palindrome (645557755546).

The spelling of 123023435225 in words is "one hundred twenty-three billion, twenty-three million, four hundred thirty-five thousand, two hundred twenty-five".