111361010402 has 4 divisors (see below), whose sum is σ = 167041515606. Its totient is φ = 55680505200.

The previous prime is 111361010401. The next prime is 111361010413. The reversal of 111361010402 is 204010163111.

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: 204010163111 = 63527 ⋅3211393.

It can be written as a sum of positive squares in only one way, i.e., 83123232721 + 28237777681 = 288311^2 + 168041^2 .

It is not an unprimeable number, because it can be changed into a prime (111361010401) 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 as a sum of consecutive naturals, namely, 27840252599 + ... + 27840252602.

Almost surely, 2^111361010402 is an apocalyptic number.

111361010402 is a deficient number, since it is larger than the sum of its proper divisors (55680505204).

111361010402 is an equidigital number, since it uses as much as digits as its factorization.

111361010402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55680505203.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 111361010402 its reverse (204010163111), we get a palindrome (315371173513).

The spelling of 111361010402 in words is "one hundred eleven billion, three hundred sixty-one million, ten thousand, four hundred two".