133231199993 has 2 divisors, whose sum is σ = 133231199994. Its totient is φ = 133231199992.

The previous prime is 133231199947. The next prime is 133231200029. The reversal of 133231199993 is 399991132331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110062707049 + 23168492944 = 331757^2 + 152212^2 .

It is a cyclic number.

It is not a de Polignac number, because 133231199993 - 2¹⁶ = 133231134457 is a prime.

It is not a weakly prime, because it can be changed into another prime (133231199293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66615599996 + 66615599997.

It is an arithmetic number, because the mean of its divisors is an integer number (66615599997).

Almost surely, 2^133231199993 is an apocalyptic number.

It is an amenable number.

133231199993 is a deficient number, since it is larger than the sum of its proper divisors (1).

133231199993 is an equidigital number, since it uses as much as digits as its factorization.

133231199993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1062882, while the sum is 53.

The spelling of 133231199993 in words is "one hundred thirty-three billion, two hundred thirty-one million, one hundred ninety-nine thousand, nine hundred ninety-three".