1881112341 has 4 divisors (see below), whose sum is σ = 2508149792. Its totient is φ = 1254074892.

The previous prime is 1881112313. The next prime is 1881112351. The reversal of 1881112341 is 1432111881.

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: 1432111881 = 3 ⋅477370627.

It is not a de Polignac number, because 1881112341 - 2¹⁵ = 1881079573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1881112299 and 1881112308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1881112351) 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, 313518721 + ... + 313518726.

It is an arithmetic number, because the mean of its divisors is an integer number (627037448).

Almost surely, 2^1881112341 is an apocalyptic number.

It is an amenable number.

1881112341 is a deficient number, since it is larger than the sum of its proper divisors (627037451).

1881112341 is an equidigital number, since it uses as much as digits as its factorization.

1881112341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627037450.

The product of its digits is 1536, while the sum is 30.

The square root of 1881112341 is about 43371.7919966422. The cubic root of 1881112341 is about 1234.4445241371. Note that the first 3 decimals are identical.

The spelling of 1881112341 in words is "one billion, eight hundred eighty-one million, one hundred twelve thousand, three hundred forty-one".