1106861421 has 12 divisors (see below), whose sum is σ = 1507892672. Its totient is φ = 722203128.

The previous prime is 1106861411. The next prime is 1106861429. The reversal of 1106861421 is 1241686011.

It is not a de Polignac number, because 1106861421 - 2⁵ = 1106861389 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 (1106861429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76885 + ... + 90138.

Almost surely, 2^1106861421 is an apocalyptic number.

It is an amenable number.

1106861421 is a deficient number, since it is larger than the sum of its proper divisors (401031251).

1106861421 is an equidigital number, since it uses as much as digits as its factorization.

1106861421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167120 (or 167073 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1106861421 is about 33269.5269127771. The cubic root of 1106861421 is about 1034.4220040536.

The spelling of 1106861421 in words is "one billion, one hundred six million, eight hundred sixty-one thousand, four hundred twenty-one".