133103312301991 has 2 divisors, whose sum is σ = 133103312301992. Its totient is φ = 133103312301990.

The previous prime is 133103312301923. The next prime is 133103312302021. The reversal of 133103312301991 is 199103213301331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133103312301991 is a prime.

It is a super-2 number, since 2×133103312301991² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133103312301691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66551656150995 + 66551656150996.

It is an arithmetic number, because the mean of its divisors is an integer number (66551656150996).

Almost surely, 2^{133103312301991} is an apocalyptic number.

133103312301991 is a deficient number, since it is larger than the sum of its proper divisors (1).

133103312301991 is an equidigital number, since it uses as much as digits as its factorization.

133103312301991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 40.

The spelling of 133103312301991 in words is "one hundred thirty-three trillion, one hundred three billion, three hundred twelve million, three hundred one thousand, nine hundred ninety-one".