82003951111 has 4 divisors (see below), whose sum is σ = 84220274152. Its totient is φ = 79787628072.

The previous prime is 82003951109. The next prime is 82003951147. The reversal of 82003951111 is 11115930028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82003951111 - 2¹ = 82003951109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82003951171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108161465 + ... + 1108161538.

It is an arithmetic number, because the mean of its divisors is an integer number (21055068538).

Almost surely, 2^82003951111 is an apocalyptic number.

82003951111 is a deficient number, since it is larger than the sum of its proper divisors (2216323041).

82003951111 is a wasteful number, since it uses less digits than its factorization.

82003951111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216323040.

The product of its (nonzero) digits is 2160, while the sum is 31.

The spelling of 82003951111 in words is "eighty-two billion, three million, nine hundred fifty-one thousand, one hundred eleven".