20025712111 has 2 divisors, whose sum is σ = 20025712112. Its totient is φ = 20025712110.

The previous prime is 20025712099. The next prime is 20025712121. The reversal of 20025712111 is 11121752002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20025712111 - 2¹¹ = 20025710063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20025712121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012856055 + 10012856056.

It is an arithmetic number, because the mean of its divisors is an integer number (10012856056).

Almost surely, 2^20025712111 is an apocalyptic number.

20025712111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20025712111 is an equidigital number, since it uses as much as digits as its factorization.

20025712111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

The spelling of 20025712111 in words is "twenty billion, twenty-five million, seven hundred twelve thousand, one hundred eleven".