133121203101 has 12 divisors (see below), whose sum is σ = 192311894112. Its totient is φ = 88735601736.

The previous prime is 133121203099. The next prime is 133121203139. The reversal of 133121203101 is 101302121331.

133121203101 is a `hidden beast` number, since 1 + 331 + 2 + 1 + 20 + 310 + 1 = 666.

It is not a de Polignac number, because 133121203101 - 2¹ = 133121203099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121207101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 917601 + ... + 1052726.

It is an arithmetic number, because the mean of its divisors is an integer number (16025991176).

Almost surely, 2^133121203101 is an apocalyptic number.

It is an amenable number.

133121203101 is a deficient number, since it is larger than the sum of its proper divisors (59190691011).

133121203101 is a wasteful number, since it uses less digits than its factorization.

133121203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977840 (or 1977837 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 133121203101 its reverse (101302121331), we get a palindrome (234423324432).

The spelling of 133121203101 in words is "one hundred thirty-three billion, one hundred twenty-one million, two hundred three thousand, one hundred one".