20202211330031 has 4 divisors (see below), whose sum is σ = 20216348638200. Its totient is φ = 20188074021864.

The previous prime is 20202211330003. The next prime is 20202211330039. The reversal of 20202211330031 is 13003311220202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20202211330031 - 2¹⁰ = 20202211329007 is a prime.

It is a super-2 number, since 2×20202211330031² (a number of 27 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 = 20202211329985 and 20202211330012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202211330039) 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, 7068651941 + ... + 7068654798.

It is an arithmetic number, because the mean of its divisors is an integer number (5054087159550).

Almost surely, 2^{20202211330031} is an apocalyptic number.

20202211330031 is a deficient number, since it is larger than the sum of its proper divisors (14137308169).

20202211330031 is a wasteful number, since it uses less digits than its factorization.

20202211330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14137308168.

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

Adding to 20202211330031 its reverse (13003311220202), we get a palindrome (33205522550233).

The spelling of 20202211330031 in words is "twenty trillion, two hundred two billion, two hundred eleven million, three hundred thirty thousand, thirty-one".