133512023971 has 2 divisors, whose sum is σ = 133512023972. Its totient is φ = 133512023970.

The previous prime is 133512023929. The next prime is 133512024011. The reversal of 133512023971 is 179320215331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133512023971 - 2⁹ = 133512023459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133512023971.

It is not a weakly prime, because it can be changed into another prime (133512021971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66756011985 + 66756011986.

It is an arithmetic number, because the mean of its divisors is an integer number (66756011986).

Almost surely, 2^133512023971 is an apocalyptic number.

133512023971 is a deficient number, since it is larger than the sum of its proper divisors (1).

133512023971 is an equidigital number, since it uses as much as digits as its factorization.

133512023971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The spelling of 133512023971 in words is "one hundred thirty-three billion, five hundred twelve million, twenty-three thousand, nine hundred seventy-one".