123354212031 has 12 divisors (see below), whose sum is σ = 187556112120. Its totient is φ = 77907923280.

The previous prime is 123354212011. The next prime is 123354212129. The reversal of 123354212031 is 130212453321.

123354212031 is a `hidden beast` number, since 1 + 2 + 3 + 35 + 421 + 203 + 1 = 666.

It is not a de Polignac number, because 123354212031 - 2¹³ = 123354203839 is a prime.

It is a super-2 number, since 2×123354212031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123354211986 and 123354212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123354212011) 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, 360684660 + ... + 360685001.

It is an arithmetic number, because the mean of its divisors is an integer number (15629676010).

Almost surely, 2^123354212031 is an apocalyptic number.

123354212031 is a deficient number, since it is larger than the sum of its proper divisors (64201900089).

123354212031 is a wasteful number, since it uses less digits than its factorization.

123354212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721369686 (or 721369683 counting only the distinct ones).

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

Adding to 123354212031 its reverse (130212453321), we get a palindrome (253566665352).

The spelling of 123354212031 in words is "one hundred twenty-three billion, three hundred fifty-four million, two hundred twelve thousand, thirty-one".