202012010111 has 2 divisors, whose sum is σ = 202012010112. Its totient is φ = 202012010110.

The previous prime is 202012010069. The next prime is 202012010113. The reversal of 202012010111 is 111010210202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202012010111 is a prime.

Together with 202012010113, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 202012010092 and 202012010101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202012010113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101006005055 + 101006005056.

It is an arithmetic number, because the mean of its divisors is an integer number (101006005056).

Almost surely, 2^202012010111 is an apocalyptic number.

202012010111 is a deficient number, since it is larger than the sum of its proper divisors (1).

202012010111 is an equidigital number, since it uses as much as digits as its factorization.

202012010111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202012010111 its reverse (111010210202), we get a palindrome (313022220313).

The spelling of 202012010111 in words is "two hundred two billion, twelve million, ten thousand, one hundred eleven".