111140245451 has 4 divisors (see below), whose sum is σ = 111197743632. Its totient is φ = 111082747272.

The previous prime is 111140245423. The next prime is 111140245459. The reversal of 111140245451 is 154542041111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154542041111 = 59 ⋅2619356629.

It is a cyclic number.

It is not a de Polignac number, because 111140245451 - 2⁶ = 111140245387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111140245459) 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, 28746191 + ... + 28750056.

It is an arithmetic number, because the mean of its divisors is an integer number (27799435908).

Almost surely, 2^111140245451 is an apocalyptic number.

111140245451 is a deficient number, since it is larger than the sum of its proper divisors (57498181).

111140245451 is an equidigital number, since it uses as much as digits as its factorization.

111140245451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57498180.

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 111140245451 its reverse (154542041111), we get a palindrome (265682286562).

The spelling of 111140245451 in words is "one hundred eleven billion, one hundred forty million, two hundred forty-five thousand, four hundred fifty-one".