133431976319 has 2 divisors, whose sum is σ = 133431976320. Its totient is φ = 133431976318.

The previous prime is 133431976309. The next prime is 133431976397. The reversal of 133431976319 is 913679134331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133431976319 - 2⁸ = 133431976063 is a prime.

It is a super-2 number, since 2×133431976319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133431976309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66715988159 + 66715988160.

It is an arithmetic number, because the mean of its divisors is an integer number (66715988160).

Almost surely, 2^133431976319 is an apocalyptic number.

133431976319 is a deficient number, since it is larger than the sum of its proper divisors (1).

133431976319 is an equidigital number, since it uses as much as digits as its factorization.

133431976319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 50.

The spelling of 133431976319 in words is "one hundred thirty-three billion, four hundred thirty-one million, nine hundred seventy-six thousand, three hundred nineteen".