133031525021 has 16 divisors (see below), whose sum is σ = 136681095168. Its totient is φ = 129442143600.

The previous prime is 133031524897. The next prime is 133031525131. The reversal of 133031525021 is 120525130331.

It is a cyclic number.

It is not a de Polignac number, because 133031525021 - 2³⁴ = 115851655837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031525621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683626 + ... + 1760868.

It is an arithmetic number, because the mean of its divisors is an integer number (8542568448).

Almost surely, 2^133031525021 is an apocalyptic number.

It is an amenable number.

133031525021 is a deficient number, since it is larger than the sum of its proper divisors (3649570147).

133031525021 is a wasteful number, since it uses less digits than its factorization.

133031525021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77632.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 133031525021 its reverse (120525130331), we get a palindrome (253556655352).

The spelling of 133031525021 in words is "one hundred thirty-three billion, thirty-one million, five hundred twenty-five thousand, twenty-one".