133440421420331 has 2 divisors, whose sum is σ = 133440421420332. Its totient is φ = 133440421420330.

The previous prime is 133440421420321. The next prime is 133440421420379. The reversal of 133440421420331 is 133024124044331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133440421420331 - 2²² = 133440417226027 is a prime.

It is a super-2 number, since 2×133440421420331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133440421420291 and 133440421420300.

It is not a weakly prime, because it can be changed into another prime (133440421420301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66720210710165 + 66720210710166.

It is an arithmetic number, because the mean of its divisors is an integer number (66720210710166).

Almost surely, 2^{133440421420331} is an apocalyptic number.

133440421420331 is a deficient number, since it is larger than the sum of its proper divisors (1).

133440421420331 is an equidigital number, since it uses as much as digits as its factorization.

133440421420331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 133440421420331 its reverse (133024124044331), we get a palindrome (266464545464662).

The spelling of 133440421420331 in words is "one hundred thirty-three trillion, four hundred forty billion, four hundred twenty-one million, four hundred twenty thousand, three hundred thirty-one".