1043121941 has 2 divisors, whose sum is σ = 1043121942. Its totient is φ = 1043121940.

The previous prime is 1043121881. The next prime is 1043121943. The reversal of 1043121941 is 1491213401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1041933841 + 1188100 = 32279^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043121941 - 2¹⁰ = 1043120917 is a prime.

It is a Sophie Germain prime.

Together with 1043121943, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1043121941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043121943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521560970 + 521560971.

It is an arithmetic number, because the mean of its divisors is an integer number (521560971).

Almost surely, 2^1043121941 is an apocalyptic number.

It is an amenable number.

1043121941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043121941 is an equidigital number, since it uses as much as digits as its factorization.

1043121941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1043121941 is about 32297.3983627165. The cubic root of 1043121941 is about 1014.1721807940.

The spelling of 1043121941 in words is "one billion, forty-three million, one hundred twenty-one thousand, nine hundred forty-one".