20220031311311 has 16 divisors (see below), whose sum is σ = 21910844762016. Its totient is φ = 18548658654336.

The previous prime is 20220031311239. The next prime is 20220031311331. The reversal of 20220031311311 is 11311313002202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20220031311311 - 2¹⁰ = 20220031310287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220031311331) 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, 3196496 + ... + 7117418.

It is an arithmetic number, because the mean of its divisors is an integer number (1369427797626).

Almost surely, 2^{20220031311311} is an apocalyptic number.

20220031311311 is a deficient number, since it is larger than the sum of its proper divisors (1690813450705).

20220031311311 is a wasteful number, since it uses less digits than its factorization.

20220031311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923402.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20220031311311 its reverse (11311313002202), we get a palindrome (31531344313513).

The spelling of 20220031311311 in words is "twenty trillion, two hundred twenty billion, thirty-one million, three hundred eleven thousand, three hundred eleven".