1038713021 has 2 divisors, whose sum is σ = 1038713022. Its totient is φ = 1038713020.

The previous prime is 1038712973. The next prime is 1038713023. The reversal of 1038713021 is 1203178301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676572121 + 362140900 = 26011^2 + 19030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038713021 - 2¹⁸ = 1038450877 is a prime.

Together with 1038713023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038713023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519356510 + 519356511.

It is an arithmetic number, because the mean of its divisors is an integer number (519356511).

Almost surely, 2^1038713021 is an apocalyptic number.

It is an amenable number.

1038713021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038713021 is an equidigital number, since it uses as much as digits as its factorization.

1038713021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1038713021 is about 32229.0710539413. The cubic root of 1038713021 is about 1012.7413098771.

The spelling of 1038713021 in words is "one billion, thirty-eight million, seven hundred thirteen thousand, twenty-one".