1110539921 has 2 divisors, whose sum is σ = 1110539922. Its totient is φ = 1110539920.

The previous prime is 1110539879. The next prime is 1110539929. The reversal of 1110539921 is 1299350111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 912040000 + 198499921 = 30200^2 + 14089^2 .

It is an emirp because it is prime and its reverse (1299350111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1110539921 - 2¹⁴ = 1110523537 is a prime.

It is a super-2 number, since 2×1110539921² = 2466597832269372482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1110539929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555269960 + 555269961.

It is an arithmetic number, because the mean of its divisors is an integer number (555269961).

Almost surely, 2^1110539921 is an apocalyptic number.

It is an amenable number.

1110539921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110539921 is an equidigital number, since it uses as much as digits as its factorization.

1110539921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 32.

The square root of 1110539921 is about 33324.7643802623. The cubic root of 1110539921 is about 1035.5666561818.

The spelling of 1110539921 in words is "one billion, one hundred ten million, five hundred thirty-nine thousand, nine hundred twenty-one".