20334211031 has 4 divisors (see below), whose sum is σ = 20342929272. Its totient is φ = 20325492792.

The previous prime is 20334210973. The next prime is 20334211033. The reversal of 20334211031 is 13011243302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13011243302 = 2 ⋅6505621651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20334211031 is a prime.

It is a super-2 number, since 2×20334211031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20334210994 and 20334211012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334211033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4355621 + ... + 4360286.

It is an arithmetic number, because the mean of its divisors is an integer number (5085732318).

Almost surely, 2^20334211031 is an apocalyptic number.

20334211031 is a deficient number, since it is larger than the sum of its proper divisors (8718241).

20334211031 is an equidigital number, since it uses as much as digits as its factorization.

20334211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718240.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20334211031 its reverse (13011243302), we get a palindrome (33345454333).

The spelling of 20334211031 in words is "twenty billion, three hundred thirty-four million, two hundred eleven thousand, thirty-one".