133431221411 has 2 divisors, whose sum is σ = 133431221412. Its totient is φ = 133431221410.

The previous prime is 133431221393. The next prime is 133431221459. The reversal of 133431221411 is 114122134331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133431221411 - 2⁶ = 133431221347 is a prime.

It is not a weakly prime, because it can be changed into another prime (133431221111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66715610705 + 66715610706.

It is an arithmetic number, because the mean of its divisors is an integer number (66715610706).

Almost surely, 2^133431221411 is an apocalyptic number.

133431221411 is a deficient number, since it is larger than the sum of its proper divisors (1).

133431221411 is an equidigital number, since it uses as much as digits as its factorization.

133431221411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

Adding to 133431221411 its reverse (114122134331), we get a palindrome (247553355742).

The spelling of 133431221411 in words is "one hundred thirty-three billion, four hundred thirty-one million, two hundred twenty-one thousand, four hundred eleven".