111321001331442 has 24 divisors (see below), whose sum is σ = 275652003297216. Its totient is φ = 31806000380376.

The previous prime is 111321001331411. The next prime is 111321001331443. The reversal of 111321001331442 is 244133100123111.

111321001331442 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 210 + 0 + 1 + 3 + 3 + 1 + 442 = 666.

It is not an unprimeable number, because it can be changed into a prime (111321001331443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 441750005158 + ... + 441750005409.

It is an arithmetic number, because the mean of its divisors is an integer number (11485500137384).

Almost surely, 2^{111321001331442} is an apocalyptic number.

111321001331442 is an abundant number, since it is smaller than the sum of its proper divisors (164331001965774).

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

111321001331442 is a wasteful number, since it uses less digits than its factorization.

111321001331442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883500010582 (or 883500010579 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 111321001331442 its reverse (244133100123111), we get a palindrome (355454101454553).

The spelling of 111321001331442 in words is "one hundred eleven trillion, three hundred twenty-one billion, one million, three hundred thirty-one thousand, four hundred forty-two".