111403216034021 has 4 divisors (see below), whose sum is σ = 111449653392000. Its totient is φ = 111356778676044.

The previous prime is 111403216034017. The next prime is 111403216034041. The reversal of 111403216034021 is 120430612304111.

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 cyclic number.

It is not a de Polignac number, because 111403216034021 - 2² = 111403216034017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111403216034041) 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, 23218675391 + ... + 23218680188.

It is an arithmetic number, because the mean of its divisors is an integer number (27862413348000).

Almost surely, 2^{111403216034021} is an apocalyptic number.

It is an amenable number.

111403216034021 is a deficient number, since it is larger than the sum of its proper divisors (46437357979).

111403216034021 is an equidigital number, since it uses as much as digits as its factorization.

111403216034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46437357978.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 111403216034021 its reverse (120430612304111), we get a palindrome (231833828338132).

The spelling of 111403216034021 in words is "one hundred eleven trillion, four hundred three billion, two hundred sixteen million, thirty-four thousand, twenty-one".