133031021191 has 2 divisors, whose sum is σ = 133031021192. Its totient is φ = 133031021190.

The previous prime is 133031021131. The next prime is 133031021209. The reversal of 133031021191 is 191120130331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133031021191 - 2¹⁷ = 133030890119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133031021131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66515510595 + 66515510596.

It is an arithmetic number, because the mean of its divisors is an integer number (66515510596).

Almost surely, 2^133031021191 is an apocalyptic number.

133031021191 is a deficient number, since it is larger than the sum of its proper divisors (1).

133031021191 is an equidigital number, since it uses as much as digits as its factorization.

133031021191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The spelling of 133031021191 in words is "one hundred thirty-three billion, thirty-one million, twenty-one thousand, one hundred ninety-one".