111012345254 has 4 divisors (see below), whose sum is σ = 166518517884. Its totient is φ = 55506172626.

The previous prime is 111012345251. The next prime is 111012345259. The reversal of 111012345254 is 452543210111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452543210111 = 41 ⋅11037639271.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012345251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27753086312 + ... + 27753086315.

It is an arithmetic number, because the mean of its divisors is an integer number (41629629471).

Almost surely, 2^111012345254 is an apocalyptic number.

111012345254 is a deficient number, since it is larger than the sum of its proper divisors (55506172630).

111012345254 is an equidigital number, since it uses as much as digits as its factorization.

111012345254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55506172629.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 111012345254 its reverse (452543210111), we get a palindrome (563555555365).

The spelling of 111012345254 in words is "one hundred eleven billion, twelve million, three hundred forty-five thousand, two hundred fifty-four".