1041251021 has 2 divisors, whose sum is σ = 1041251022. Its totient is φ = 1041251020.

The previous prime is 1041250967. The next prime is 1041251027. The reversal of 1041251021 is 1201521401.

1041251021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980629225 + 60621796 = 31315^2 + 7786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1041251021 - 2¹⁸ = 1040988877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1041251027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520625510 + 520625511.

It is an arithmetic number, because the mean of its divisors is an integer number (520625511).

Almost surely, 2^1041251021 is an apocalyptic number.

It is an amenable number.

1041251021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041251021 is an equidigital number, since it uses as much as digits as its factorization.

1041251021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1041251021 is about 32268.4214209496. The cubic root of 1041251021 is about 1013.5654858103.

Adding to 1041251021 its reverse (1201521401), we get a palindrome (2242772422).

The spelling of 1041251021 in words is "one billion, forty-one million, two hundred fifty-one thousand, twenty-one".