111421104493 has 4 divisors (see below), whose sum is σ = 111422724768. Its totient is φ = 111419484220.

The previous prime is 111421104469. The next prime is 111421104499. The reversal of 111421104493 is 394401124111.

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, and also an emirpimes, since its reverse is a distinct semiprime: 394401124111 = 197 ⋅2002036163.

It is a cyclic number.

It is not a de Polignac number, because 111421104493 - 2³³ = 102831169901 is a prime.

It is a super-3 number, since 3×111421104493³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111421104499) 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, 702193 + ... + 846118.

It is an arithmetic number, because the mean of its divisors is an integer number (27855681192).

Almost surely, 2^111421104493 is an apocalyptic number.

It is an amenable number.

111421104493 is a deficient number, since it is larger than the sum of its proper divisors (1620275).

111421104493 is an equidigital number, since it uses as much as digits as its factorization.

111421104493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620274.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 111421104493 in words is "one hundred eleven billion, four hundred twenty-one million, one hundred four thousand, four hundred ninety-three".