111345155213 has 12 divisors (see below), whose sum is σ = 120380069628. Its totient is φ = 102912068160.

The previous prime is 111345155209. The next prime is 111345155287. The reversal of 111345155213 is 312551543111.

It can be written as a sum of positive squares in 2 ways, for example, as 9250207684 + 102094947529 = 96178^2 + 319523^2 .

It is not a de Polignac number, because 111345155213 - 2² = 111345155209 is a prime.

It is a super-2 number, since 2×111345155213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111345155213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111345152213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3746606 + ... + 3776207.

It is an arithmetic number, because the mean of its divisors is an integer number (10031672469).

Almost surely, 2^111345155213 is an apocalyptic number.

It is an amenable number.

111345155213 is a deficient number, since it is larger than the sum of its proper divisors (9034914415).

111345155213 is an equidigital number, since it uses as much as digits as its factorization.

111345155213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522892 (or 7522873 counting only the distinct ones).

The product of its digits is 9000, while the sum is 32.

Adding to 111345155213 its reverse (312551543111), we get a palindrome (423896698324).

The spelling of 111345155213 in words is "one hundred eleven billion, three hundred forty-five million, one hundred fifty-five thousand, two hundred thirteen".