111425029873 has 4 divisors (see below), whose sum is σ = 112002361828. Its totient is φ = 110847697920.

The previous prime is 111425029871. The next prime is 111425029879. The reversal of 111425029873 is 378920524111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 378920524111 = 157 ⋅2413506523.

It can be written as a sum of positive squares in 2 ways, for example, as 44513826289 + 66911203584 = 210983^2 + 258672^2 .

It is a cyclic number.

It is not a de Polignac number, because 111425029873 - 2¹ = 111425029871 is a prime.

It is a super-2 number, since 2×111425029873² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111425029871) 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, 288665688 + ... + 288666073.

It is an arithmetic number, because the mean of its divisors is an integer number (28000590457).

Almost surely, 2^111425029873 is an apocalyptic number.

It is an amenable number.

111425029873 is a deficient number, since it is larger than the sum of its proper divisors (577331955).

111425029873 is an equidigital number, since it uses as much as digits as its factorization.

111425029873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577331954.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 111425029873 in words is "one hundred eleven billion, four hundred twenty-five million, twenty-nine thousand, eight hundred seventy-three".