111012311002 has 4 divisors (see below), whose sum is σ = 166518466506. Its totient is φ = 55506155500.

The previous prime is 111012310979. The next prime is 111012311117. The reversal of 111012311002 is 200113210111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83873372881 + 27138938121 = 289609^2 + 164739^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27753077749 + ... + 27753077752.

Almost surely, 2^111012311002 is an apocalyptic number.

111012311002 is a deficient number, since it is larger than the sum of its proper divisors (55506155504).

111012311002 is an equidigital number, since it uses as much as digits as its factorization.

111012311002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55506155503.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111012311002 its reverse (200113210111), we get a palindrome (311125521113).

The spelling of 111012311002 in words is "one hundred eleven billion, twelve million, three hundred eleven thousand, two".