133231233123 has 12 divisors (see below), whose sum is σ = 192527351328. Its totient is φ = 88782866640.

The previous prime is 133231233049. The next prime is 133231233127. The reversal of 133231233123 is 321332132331.

133231233123 is a `hidden beast` number, since 1 + 3 + 32 + 312 + 3 + 312 + 3 = 666.

It is not a de Polignac number, because 133231233123 - 2¹⁷ = 133231102051 is a prime.

It is a super-2 number, since 2×133231233123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133231233127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3140715 + ... + 3182852.

It is an arithmetic number, because the mean of its divisors is an integer number (16043945944).

Almost surely, 2^133231233123 is an apocalyptic number.

133231233123 is a deficient number, since it is larger than the sum of its proper divisors (59296118205).

133231233123 is a wasteful number, since it uses less digits than its factorization.

133231233123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325914 (or 6325911 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 133231233123 its reverse (321332132331), we get a palindrome (454563365454).

The spelling of 133231233123 in words is "one hundred thirty-three billion, two hundred thirty-one million, two hundred thirty-three thousand, one hundred twenty-three".