111321020012 has 12 divisors (see below), whose sum is σ = 198487479456. Its totient is φ = 54610311600.

The previous prime is 111321020003. The next prime is 111321020039. The reversal of 111321020012 is 210020123111.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262549364 + ... + 262549787.

It is an arithmetic number, because the mean of its divisors is an integer number (16540623288).

Almost surely, 2^111321020012 is an apocalyptic number.

It is an amenable number.

111321020012 is a deficient number, since it is larger than the sum of its proper divisors (87166459444).

111321020012 is a wasteful number, since it uses less digits than its factorization.

111321020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525099208 (or 525099206 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111321020012 its reverse (210020123111), we get a palindrome (321341143123).

It can be divided in two parts, 111 and 321020012, that added together give a palindrome (321020123).

The spelling of 111321020012 in words is "one hundred eleven billion, three hundred twenty-one million, twenty thousand, twelve".