1111120002 has 48 divisors (see below), whose sum is σ = 2454357048. Its totient is φ = 363191040.

The previous prime is 1111119979. The next prime is 1111120009. The reversal of 1111120002 is 2000211111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 989039601 + 122080401 = 31449^2 + 11049^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1111120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408198 + ... + 410910.

Almost surely, 2^1111120002 is an apocalyptic number.

1111120002 is an abundant number, since it is smaller than the sum of its proper divisors (1343237046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111120002 is a wasteful number, since it uses less digits than its factorization.

1111120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155 (or 3152 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1111120002 is about 33333.4666963999. The cubic root of 1111120002 is about 1035.7469312498.

Adding to 1111120002 its reverse (2000211111), we get a palindrome (3111331113).

It can be divided in two parts, 11111 and 20002, that multiplied together give a palindrome (222242222).

The spelling of 1111120002 in words is "one billion, one hundred eleven million, one hundred twenty thousand, two".