20225331143 has 2 divisors, whose sum is σ = 20225331144. Its totient is φ = 20225331142.

The previous prime is 20225331131. The next prime is 20225331151. The reversal of 20225331143 is 34113352202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20225331143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20225331743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112665571 + 10112665572.

It is an arithmetic number, because the mean of its divisors is an integer number (10112665572).

Almost surely, 2^20225331143 is an apocalyptic number.

20225331143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20225331143 is an equidigital number, since it uses as much as digits as its factorization.

20225331143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20225331143 its reverse (34113352202), we get a palindrome (54338683345).

The spelling of 20225331143 in words is "twenty billion, two hundred twenty-five million, three hundred thirty-one thousand, one hundred forty-three".