20311146343 has 2 divisors, whose sum is σ = 20311146344. Its totient is φ = 20311146342.

The previous prime is 20311146311. The next prime is 20311146379. The reversal of 20311146343 is 34364111302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20311146343 - 2⁵ = 20311146311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20311146143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155573171 + 10155573172.

It is an arithmetic number, because the mean of its divisors is an integer number (10155573172).

Almost surely, 2^20311146343 is an apocalyptic number.

20311146343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311146343 is an equidigital number, since it uses as much as digits as its factorization.

20311146343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 20311146343 its reverse (34364111302), we get a palindrome (54675257645).

The spelling of 20311146343 in words is "twenty billion, three hundred eleven million, one hundred forty-six thousand, three hundred forty-three".