1043052421 has 2 divisors, whose sum is σ = 1043052422. Its totient is φ = 1043052420.

The previous prime is 1043052389. The next prime is 1043052431. The reversal of 1043052421 is 1242503401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042644100 + 408321 = 32290^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043052421 - 2⁵ = 1043052389 is a prime.

It is a super-2 number, since 2×1043052421² = 2175916705907922482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1043052392 and 1043052401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043052431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521526210 + 521526211.

It is an arithmetic number, because the mean of its divisors is an integer number (521526211).

Almost surely, 2^1043052421 is an apocalyptic number.

It is an amenable number.

1043052421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043052421 is an equidigital number, since it uses as much as digits as its factorization.

1043052421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1043052421 is about 32296.3220971057. The cubic root of 1043052421 is about 1014.1496500896.

Adding to 1043052421 its reverse (1242503401), we get a palindrome (2285555822).

The spelling of 1043052421 in words is "one billion, forty-three million, fifty-two thousand, four hundred twenty-one".