1232131201117 has 2 divisors, whose sum is σ = 1232131201118. Its totient is φ = 1232131201116.

The previous prime is 1232131201069. The next prime is 1232131201121. The reversal of 1232131201117 is 7111021312321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 640145608281 + 591985592836 = 800091^2 + 769406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232131201117 is a prime.

It is a super-2 number, since 2×1232131201117² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1232131201091 and 1232131201100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1232131201417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616065600558 + 616065600559.

It is an arithmetic number, because the mean of its divisors is an integer number (616065600559).

Almost surely, 2^{1232131201117} is an apocalyptic number.

It is an amenable number.

1232131201117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232131201117 is an equidigital number, since it uses as much as digits as its factorization.

1232131201117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 1232131201117 its reverse (7111021312321), we get a palindrome (8343152513438).

The spelling of 1232131201117 in words is "one trillion, two hundred thirty-two billion, one hundred thirty-one million, two hundred one thousand, one hundred seventeen".