133021010197 has 2 divisors, whose sum is σ = 133021010198. Its totient is φ = 133021010196.

The previous prime is 133021010147. The next prime is 133021010207. The reversal of 133021010197 is 791010120331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98370676881 + 34650333316 = 313641^2 + 186146^2 .

It is a cyclic number.

It is not a de Polignac number, because 133021010197 - 2²³ = 133012621589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133021010147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66510505098 + 66510505099.

It is an arithmetic number, because the mean of its divisors is an integer number (66510505099).

Almost surely, 2^133021010197 is an apocalyptic number.

It is an amenable number.

133021010197 is a deficient number, since it is larger than the sum of its proper divisors (1).

133021010197 is an equidigital number, since it uses as much as digits as its factorization.

133021010197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The spelling of 133021010197 in words is "one hundred thirty-three billion, twenty-one million, ten thousand, one hundred ninety-seven".