1100671921 has 2 divisors, whose sum is σ = 1100671922. Its totient is φ = 1100671920.

The previous prime is 1100671907. The next prime is 1100671927. The reversal of 1100671921 is 1291760011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1031116321 + 69555600 = 32111^2 + 8340^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100671921 - 2⁵ = 1100671889 is a prime.

It is a super-2 number, since 2×1100671921² = 2422957355355660482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1100671921.

It is not a weakly prime, because it can be changed into another prime (1100671927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550335960 + 550335961.

It is an arithmetic number, because the mean of its divisors is an integer number (550335961).

Almost surely, 2^1100671921 is an apocalyptic number.

It is an amenable number.

1100671921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100671921 is an equidigital number, since it uses as much as digits as its factorization.

1100671921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 28.

The square root of 1100671921 is about 33176.3759473515. The cubic root of 1100671921 is about 1032.4902577314.

The spelling of 1100671921 in words is "one billion, one hundred million, six hundred seventy-one thousand, nine hundred twenty-one".