111144401007 has 4 divisors (see below), whose sum is σ = 148192534680. Its totient is φ = 74096267336.

The previous prime is 111144400951. The next prime is 111144401041. The reversal of 111144401007 is 700104441111.

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 111144401007 - 2⁶ = 111144400943 is a prime.

It is a super-2 number, since 2×111144401007² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111144408007) 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, 18524066832 + ... + 18524066837.

It is an arithmetic number, because the mean of its divisors is an integer number (37048133670).

Almost surely, 2^111144401007 is an apocalyptic number.

111144401007 is a deficient number, since it is larger than the sum of its proper divisors (37048133673).

111144401007 is an equidigital number, since it uses as much as digits as its factorization.

111144401007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37048133672.

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 111144401007 its reverse (700104441111), we get a palindrome (811248842118).

The spelling of 111144401007 in words is "one hundred eleven billion, one hundred forty-four million, four hundred one thousand, seven".