131233333333 has 2 divisors, whose sum is σ = 131233333334. Its totient is φ = 131233333332.

The previous prime is 131233333303. The next prime is 131233333351. The reversal of 131233333333 is 333333332131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90903456004 + 40329877329 = 301502^2 + 200823^2 .

It is an emirp because it is prime and its reverse (333333332131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131233333333 - 2²¹ = 131231236181 is a prime.

131233333333 is a modest number, since divided by 333333 gives 131233 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 131233333295 and 131233333304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131233333303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616666666 + 65616666667.

It is an arithmetic number, because the mean of its divisors is an integer number (65616666667).

Almost surely, 2^131233333333 is an apocalyptic number.

It is an amenable number.

131233333333 is a deficient number, since it is larger than the sum of its proper divisors (1).

131233333333 is an equidigital number, since it uses as much as digits as its factorization.

131233333333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39366, while the sum is 31.

Adding to 131233333333 its reverse (333333332131), we get a palindrome (464566665464).

The spelling of 131233333333 in words is "one hundred thirty-one billion, two hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty-three".