1041020399 has 2 divisors, whose sum is σ = 1041020400. Its totient is φ = 1041020398.

The previous prime is 1041020377. The next prime is 1041020413. The reversal of 1041020399 is 9930201401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1041020399 - 2¹² = 1041016303 is a prime.

It is a super-2 number, since 2×1041020399² = 2167446942268238402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1041020359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520510199 + 520510200.

It is an arithmetic number, because the mean of its divisors is an integer number (520510200).

Almost surely, 2^1041020399 is an apocalyptic number.

1041020399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041020399 is an equidigital number, since it uses as much as digits as its factorization.

1041020399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1041020399 is about 32264.8477293788. The cubic root of 1041020399 is about 1013.4906502665.

The spelling of 1041020399 in words is "one billion, forty-one million, twenty thousand, three hundred ninety-nine".