133203120231 has 32 divisors (see below), whose sum is σ = 185026383360. Its totient is φ = 85176691200.

The previous prime is 133203120181. The next prime is 133203120233. The reversal of 133203120231 is 132021302331.

It is not a de Polignac number, because 133203120231 - 2¹³ = 133203112039 is a prime.

It is a super-2 number, since 2×133203120231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133203120198 and 133203120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133203120233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1723171 + ... + 1798811.

It is an arithmetic number, because the mean of its divisors is an integer number (5782074480).

Almost surely, 2^133203120231 is an apocalyptic number.

133203120231 is a deficient number, since it is larger than the sum of its proper divisors (51823263129).

133203120231 is a wasteful number, since it uses less digits than its factorization.

133203120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75927.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 133203120231 its reverse (132021302331), we get a palindrome (265224422562).

The spelling of 133203120231 in words is "one hundred thirty-three billion, two hundred three million, one hundred twenty thousand, two hundred thirty-one".