2111061481 has 8 divisors (see below), whose sum is σ = 2224206720. Its totient is φ = 1998119952.

The previous prime is 2111061473. The next prime is 2111061487. The reversal of 2111061481 is 1841601112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111061481 - 2³ = 2111061473 is a prime.

It is a super-4 number, since 4×2111061481⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111061487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29410 + ... + 71323.

It is an arithmetic number, because the mean of its divisors is an integer number (278025840).

Almost surely, 2^2111061481 is an apocalyptic number.

It is an amenable number.

2111061481 is a deficient number, since it is larger than the sum of its proper divisors (113145239).

2111061481 is a wasteful number, since it uses less digits than its factorization.

2111061481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101855.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 2111061481 is about 45946.2890884563. The cubic root of 2111061481 is about 1282.8236576343.

Adding to 2111061481 its reverse (1841601112), we get a palindrome (3952662593).

The spelling of 2111061481 in words is "two billion, one hundred eleven million, sixty-one thousand, four hundred eighty-one".