111312120130 has 64 divisors (see below), whose sum is σ = 209934620640. Its totient is φ = 42440065024.

The previous prime is 111312120121. The next prime is 111312120137. The reversal of 111312120130 is 31021213111.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 9131522481 + 102180597649 = 95559^2 + 319657^2 .

It is not an unprimeable number, because it can be changed into a prime (111312120137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8415282 + ... + 8428498.

Almost surely, 2^111312120130 is an apocalyptic number.

111312120130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111312120130 is a deficient number, since it is larger than the sum of its proper divisors (98622500510).

111312120130 is a wasteful number, since it uses less digits than its factorization.

111312120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13623.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111312120130 its reverse (31021213111), we get a palindrome (142333333241).

The spelling of 111312120130 in words is "one hundred eleven billion, three hundred twelve million, one hundred twenty thousand, one hundred thirty".