123122233251 has 12 divisors (see below), whose sum is σ = 184430012312. Its totient is φ = 82081488672.

The previous prime is 123122233217. The next prime is 123122233261. The reversal of 123122233251 is 152332221321.

123122233251 is a `hidden beast` number, since 1 + 2 + 312 + 2 + 23 + 325 + 1 = 666.

It is not a de Polignac number, because 123122233251 - 2⁶ = 123122233187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123122233261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253337686 + ... + 253338171.

Almost surely, 2^123122233251 is an apocalyptic number.

123122233251 is a deficient number, since it is larger than the sum of its proper divisors (61307779061).

123122233251 is an frugal number, since it uses more digits than its factorization.

123122233251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506675872 (or 506675860 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

Adding to 123122233251 its reverse (152332221321), we get a palindrome (275454454572).

The spelling of 123122233251 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred thirty-three thousand, two hundred fifty-one".