71992000111 has 2 divisors, whose sum is σ = 71992000112. Its totient is φ = 71992000110.

The previous prime is 71992000099. The next prime is 71992000133. The reversal of 71992000111 is 11100029917.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71992000111 - 2⁷ = 71991999983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71992000511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35996000055 + 35996000056.

It is an arithmetic number, because the mean of its divisors is an integer number (35996000056).

Almost surely, 2^71992000111 is an apocalyptic number.

71992000111 is a deficient number, since it is larger than the sum of its proper divisors (1).

71992000111 is an equidigital number, since it uses as much as digits as its factorization.

71992000111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 31.

The spelling of 71992000111 in words is "seventy-one billion, nine hundred ninety-two million, one hundred eleven", and thus it is an aban number.