20021033031113 has 8 divisors (see below), whose sum is σ = 20324024111496. Its totient is φ = 19720096128000.

The previous prime is 20021033031089. The next prime is 20021033031199. The reversal of 20021033031113 is 31113033012002.

It can be written as a sum of positive squares in 4 ways, for example, as 834250237129 + 19186782793984 = 913373^2 + 4380272^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20021033031113 - 2²⁶ = 20020965922249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021033001113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513524678 + ... + 513563663.

It is an arithmetic number, because the mean of its divisors is an integer number (2540503013937).

Almost surely, 2^{20021033031113} is an apocalyptic number.

It is an amenable number.

20021033031113 is a deficient number, since it is larger than the sum of its proper divisors (302991080383).

20021033031113 is a wasteful number, since it uses less digits than its factorization.

20021033031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027088635.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20021033031113 its reverse (31113033012002), we get a palindrome (51134066043115).

The spelling of 20021033031113 in words is "twenty trillion, twenty-one billion, thirty-three million, thirty-one thousand, one hundred thirteen".