111243153101 has 4 divisors (see below), whose sum is σ = 113342080572. Its totient is φ = 109144225632.

The previous prime is 111243153097. The next prime is 111243153121. The reversal of 111243153101 is 101351342111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81753677476 + 29489475625 = 285926^2 + 171725^2 .

It is a cyclic number.

It is not a de Polignac number, because 111243153101 - 2² = 111243153097 is a prime.

It is a super-2 number, since 2×111243153101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111243153121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049463656 + ... + 1049463761.

It is an arithmetic number, because the mean of its divisors is an integer number (28335520143).

Almost surely, 2^111243153101 is an apocalyptic number.

It is an amenable number.

111243153101 is a deficient number, since it is larger than the sum of its proper divisors (2098927471).

111243153101 is an equidigital number, since it uses as much as digits as its factorization.

111243153101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098927470.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 111243153101 its reverse (101351342111), we get a palindrome (212594495212).

The spelling of 111243153101 in words is "one hundred eleven billion, two hundred forty-three million, one hundred fifty-three thousand, one hundred one".