111111323012 has 6 divisors (see below), whose sum is σ = 194444815278. Its totient is φ = 55555661504.

The previous prime is 111111323003. The next prime is 111111323033. The reversal of 111111323012 is 210323111111.

It can be written as a sum of positive squares in only one way, i.e., 109148301376 + 1963021636 = 330376^2 + 44306^2 .

It is a super-2 number, since 2×111111323012² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888915373 + ... + 13888915380.

It is an arithmetic number, because the mean of its divisors is an integer number (32407469213).

Almost surely, 2^111111323012 is an apocalyptic number.

It is an amenable number.

111111323012 is a deficient number, since it is larger than the sum of its proper divisors (83333492266).

111111323012 is a wasteful number, since it uses less digits than its factorization.

111111323012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27777830757 (or 27777830755 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 111111323012 its reverse (210323111111), we get a palindrome (321434434123).

The spelling of 111111323012 in words is "one hundred eleven billion, one hundred eleven million, three hundred twenty-three thousand, twelve".