111206420249 has 8 divisors (see below), whose sum is σ = 115908229632. Its totient is φ = 106574267520.

The previous prime is 111206420219. The next prime is 111206420257. The reversal of 111206420249 is 942024602111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111206420249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111206420219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17410904 + ... + 17417289.

It is an arithmetic number, because the mean of its divisors is an integer number (14488528704).

Almost surely, 2^111206420249 is an apocalyptic number.

It is an amenable number.

111206420249 is a deficient number, since it is larger than the sum of its proper divisors (4701809383).

111206420249 is a wasteful number, since it uses less digits than its factorization.

111206420249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34828327.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 111206420249 in words is "one hundred eleven billion, two hundred six million, four hundred twenty thousand, two hundred forty-nine".