123287671233 has 12 divisors (see below), whose sum is σ = 179382063588. Its totient is φ = 81591840000.

The previous prime is 123287671231. The next prime is 123287671291. The reversal of 123287671233 is 332176782321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108087740289 + 15199930944 = 328767^2 + 123288^2 .

It is not a de Polignac number, because 123287671233 - 2¹ = 123287671231 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123287671231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49993768 + ... + 49996233.

It is an arithmetic number, because the mean of its divisors is an integer number (14948505299).

Almost surely, 2^123287671233 is an apocalyptic number.

It is an amenable number.

123287671233 is a deficient number, since it is larger than the sum of its proper divisors (56094392355).

123287671233 is a wasteful number, since it uses less digits than its factorization.

123287671233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99990144 (or 99990141 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The spelling of 123287671233 in words is "one hundred twenty-three billion, two hundred eighty-seven million, six hundred seventy-one thousand, two hundred thirty-three".