133000131211 has 4 divisors (see below), whose sum is σ = 133425052072. Its totient is φ = 132575210352.

The previous prime is 133000131197. The next prime is 133000131241. The reversal of 133000131211 is 112131000331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133000131211 - 2¹⁵ = 133000098443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133000131241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212459961 + ... + 212460586.

It is an arithmetic number, because the mean of its divisors is an integer number (33356263018).

Almost surely, 2^133000131211 is an apocalyptic number.

133000131211 is a deficient number, since it is larger than the sum of its proper divisors (424920861).

133000131211 is an equidigital number, since it uses as much as digits as its factorization.

133000131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424920860.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 133000131211 its reverse (112131000331), we get a palindrome (245131131542).

The spelling of 133000131211 in words is "one hundred thirty-three billion, one hundred thirty-one thousand, two hundred eleven".