123016433 has 4 divisors (see below), whose sum is σ = 124105188. Its totient is φ = 121927680.

The previous prime is 123016429. The next prime is 123016447. The reversal of 123016433 is 334610321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3157729 + 119858704 = 1777^2 + 10948^2 .

It is a cyclic number.

It is not a de Polignac number, because 123016433 - 2² = 123016429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123016399 and 123016408.

It is not an unprimeable number, because it can be changed into a prime (123016493) 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, 544208 + ... + 544433.

It is an arithmetic number, because the mean of its divisors is an integer number (31026297).

Almost surely, 2^123016433 is an apocalyptic number.

It is an amenable number.

123016433 is a deficient number, since it is larger than the sum of its proper divisors (1088755).

123016433 is a wasteful number, since it uses less digits than its factorization.

123016433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088754.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 123016433 is about 11091.2773385215. The cubic root of 123016433 is about 497.3411298822.

Adding to 123016433 its reverse (334610321), we get a palindrome (457626754).

The spelling of 123016433 in words is "one hundred twenty-three million, sixteen thousand, four hundred thirty-three".