20012303111 has 2 divisors, whose sum is σ = 20012303112. Its totient is φ = 20012303110.

The previous prime is 20012303107. The next prime is 20012303249. The reversal of 20012303111 is 11130321002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012303111 - 2² = 20012303107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012303011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006151555 + 10006151556.

It is an arithmetic number, because the mean of its divisors is an integer number (10006151556).

Almost surely, 2^20012303111 is an apocalyptic number.

20012303111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012303111 is an equidigital number, since it uses as much as digits as its factorization.

20012303111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20012303111 its reverse (11130321002), we get a palindrome (31142624113).

The spelling of 20012303111 in words is "twenty billion, twelve million, three hundred three thousand, one hundred eleven".