111434441402 has 4 divisors (see below), whose sum is σ = 167151662106. Its totient is φ = 55717220700.

The previous prime is 111434441351. The next prime is 111434441413. The reversal of 111434441402 is 204144434111.

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: 204144434111 = 197 ⋅1036266163.

It can be written as a sum of positive squares in only one way, i.e., 110337573241 + 1096868161 = 332171^2 + 33119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27858610349 + ... + 27858610352.

Almost surely, 2^111434441402 is an apocalyptic number.

111434441402 is a deficient number, since it is larger than the sum of its proper divisors (55717220704).

111434441402 is an equidigital number, since it uses as much as digits as its factorization.

111434441402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55717220703.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 111434441402 its reverse (204144434111), we get a palindrome (315578875513).

The spelling of 111434441402 in words is "one hundred eleven billion, four hundred thirty-four million, four hundred forty-one thousand, four hundred two".