2021311320133 has 32 divisors (see below), whose sum is σ = 2369314713600. Its totient is φ = 1688783040000.

The previous prime is 2021311320103. The next prime is 2021311320157. The reversal of 2021311320133 is 3310231131202.

It is a de Polignac number, because none of the positive numbers 2^k-2021311320133 is a prime.

It is a super-2 number, since 2×2021311320133² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021311320103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15771093 + ... + 15898741.

It is an arithmetic number, because the mean of its divisors is an integer number (74041084800).

Almost surely, 2^{2021311320133} is an apocalyptic number.

It is an amenable number.

2021311320133 is a deficient number, since it is larger than the sum of its proper divisors (348003393467).

2021311320133 is a wasteful number, since it uses less digits than its factorization.

2021311320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128089.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2021311320133 its reverse (3310231131202), we get a palindrome (5331542451335).

The spelling of 2021311320133 in words is "two trillion, twenty-one billion, three hundred eleven million, three hundred twenty thousand, one hundred thirty-three".