123131230001 has 8 divisors (see below), whose sum is σ = 132799905000. Its totient is φ = 113490703872.

The previous prime is 123131229979. The next prime is 123131230021. The reversal of 123131230001 is 100032131321.

It can be written as a sum of positive squares in 4 ways, for example, as 84621601 + 123046608400 = 9199^2 + 350780^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123131230001 - 2¹⁰ = 123131228977 is a prime.

It is a super-2 number, since 2×123131230001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123131230021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7028126 + ... + 7045623.

It is an arithmetic number, because the mean of its divisors is an integer number (16599988125).

Almost surely, 2^123131230001 is an apocalyptic number.

It is an amenable number.

123131230001 is a deficient number, since it is larger than the sum of its proper divisors (9668674999).

123131230001 is a wasteful number, since it uses less digits than its factorization.

123131230001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14074435.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123131230001 its reverse (100032131321), we get a palindrome (223163361322).

The spelling of 123131230001 in words is "one hundred twenty-three billion, one hundred thirty-one million, two hundred thirty thousand, one".