111920858049 has 96 divisors (see below), whose sum is σ = 210658516992. Its totient is φ = 51334588800.

The previous prime is 111920858041. The next prime is 111920858069. The reversal of 111920858049 is 940858029111.

It is a happy number.

It is not a de Polignac number, because 111920858049 - 2³ = 111920858041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111920857989 and 111920858007.

It is not an unprimeable number, because it can be changed into a prime (111920858041) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 686104 + ... + 833414.

It is an arithmetic number, because the mean of its divisors is an integer number (2194359552).

Almost surely, 2^111920858049 is an apocalyptic number.

It is an amenable number.

111920858049 is a deficient number, since it is larger than the sum of its proper divisors (98737658943).

111920858049 is a wasteful number, since it uses less digits than its factorization.

111920858049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147379 (or 147368 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 48.

It can be divided in two parts, 111920 and 858049, that added together give a palindrome (969969).

The spelling of 111920858049 in words is "one hundred eleven billion, nine hundred twenty million, eight hundred fifty-eight thousand, forty-nine".