133011031321021 has 16 divisors (see below), whose sum is σ = 153098248670464. Its totient is φ = 113196338970624.

The previous prime is 133011031321019. The next prime is 133011031321027. The reversal of 133011031321021 is 120123130110331.

It is not a de Polignac number, because 133011031321021 - 2¹ = 133011031321019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133011031320983 and 133011031321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133011031321027) 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, 45010500 + ... + 47874493.

It is an arithmetic number, because the mean of its divisors is an integer number (9568640541904).

Almost surely, 2^{133011031321021} is an apocalyptic number.

It is an amenable number.

133011031321021 is a deficient number, since it is larger than the sum of its proper divisors (20087217349443).

133011031321021 is a wasteful number, since it uses less digits than its factorization.

133011031321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92886460.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 133011031321021 its reverse (120123130110331), we get a palindrome (253134161431352).

The spelling of 133011031321021 in words is "one hundred thirty-three trillion, eleven billion, thirty-one million, three hundred twenty-one thousand, twenty-one".