111212144353 has 2 divisors, whose sum is σ = 111212144354. Its totient is φ = 111212144352.

The previous prime is 111212144321. The next prime is 111212144357. The reversal of 111212144353 is 353441212111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98861822929 + 12350321424 = 314423^2 + 111132^2 .

It is a cyclic number.

It is not a de Polignac number, because 111212144353 - 2⁵ = 111212144321 is a prime.

It is not a weakly prime, because it can be changed into another prime (111212144357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606072176 + 55606072177.

It is an arithmetic number, because the mean of its divisors is an integer number (55606072177).

Almost surely, 2^111212144353 is an apocalyptic number.

It is an amenable number.

111212144353 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212144353 is an equidigital number, since it uses as much as digits as its factorization.

111212144353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 28.

Adding to 111212144353 its reverse (353441212111), we get a palindrome (464653356464).

The spelling of 111212144353 in words is "one hundred eleven billion, two hundred twelve million, one hundred forty-four thousand, three hundred fifty-three".