20212131133223 has 2 divisors, whose sum is σ = 20212131133224. Its totient is φ = 20212131133222.

The previous prime is 20212131133211. The next prime is 20212131133231. The reversal of 20212131133223 is 32233113121202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20212131133223 - 2³⁴ = 20194951264039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212131133192 and 20212131133201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212131133253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106065566611 + 10106065566612.

It is an arithmetic number, because the mean of its divisors is an integer number (10106065566612).

Almost surely, 2^{20212131133223} is an apocalyptic number.

20212131133223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212131133223 is an equidigital number, since it uses as much as digits as its factorization.

20212131133223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20212131133223 its reverse (32233113121202), we get a palindrome (52445244254425).

The spelling of 20212131133223 in words is "twenty trillion, two hundred twelve billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred twenty-three".