133203120230981 has 2 divisors, whose sum is σ = 133203120230982. Its totient is φ = 133203120230980.

The previous prime is 133203120230923. The next prime is 133203120231011. The reversal of 133203120230981 is 189032021302331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69580705665025 + 63622414565956 = 8341505^2 + 7976366^2 .

It is a cyclic number.

It is not a de Polignac number, because 133203120230981 - 2¹⁰ = 133203120229957 is a prime.

It is a super-2 number, since 2×133203120230981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133203120232981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66601560115490 + 66601560115491.

It is an arithmetic number, because the mean of its divisors is an integer number (66601560115491).

Almost surely, 2^{133203120230981} is an apocalyptic number.

It is an amenable number.

133203120230981 is a deficient number, since it is larger than the sum of its proper divisors (1).

133203120230981 is an equidigital number, since it uses as much as digits as its factorization.

133203120230981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 133203120230981 in words is "one hundred thirty-three trillion, two hundred three billion, one hundred twenty million, two hundred thirty thousand, nine hundred eighty-one".