123242402331 has 24 divisors (see below), whose sum is σ = 182389169664. Its totient is φ = 80154832560.

The previous prime is 123242402329. The next prime is 123242402341. The reversal of 123242402331 is 133204242321.

123242402331 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 424 + 0 + 233 + 1 = 666.

It is not a de Polignac number, because 123242402331 - 2¹ = 123242402329 is a prime.

It is a super-2 number, since 2×123242402331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123242402295 and 123242402304.

It is not an unprimeable number, because it can be changed into a prime (123242402341) 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 23 ways as a sum of consecutive naturals, for example, 336861 + ... + 599966.

It is an arithmetic number, because the mean of its divisors is an integer number (7599548736).

Almost surely, 2^123242402331 is an apocalyptic number.

123242402331 is a deficient number, since it is larger than the sum of its proper divisors (59146767333).

123242402331 is a wasteful number, since it uses less digits than its factorization.

123242402331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937191 (or 937188 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 123242402331 its reverse (133204242321), we get a palindrome (256446644652).

The spelling of 123242402331 in words is "one hundred twenty-three billion, two hundred forty-two million, four hundred two thousand, three hundred thirty-one".