111311010213321 has 4 divisors (see below), whose sum is σ = 148414680284432. Its totient is φ = 74207340142212.

The previous prime is 111311010213281. The next prime is 111311010213349. The reversal of 111311010213321 is 123312010113111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-111311010213321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111311010212321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18551835035551 + ... + 18551835035556.

It is an arithmetic number, because the mean of its divisors is an integer number (37103670071108).

Almost surely, 2^{111311010213321} is an apocalyptic number.

It is an amenable number.

111311010213321 is a deficient number, since it is larger than the sum of its proper divisors (37103670071111).

111311010213321 is an equidigital number, since it uses as much as digits as its factorization.

111311010213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37103670071110.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 111311010213321 its reverse (123312010113111), we get a palindrome (234623020326432).

The spelling of 111311010213321 in words is "one hundred eleven trillion, three hundred eleven billion, ten million, two hundred thirteen thousand, three hundred twenty-one".