1043325021 has 8 divisors (see below), whose sum is σ = 1399635040. Its totient is φ = 691282512.

The previous prime is 1043324993. The next prime is 1043325061. The reversal of 1043325021 is 1205233401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1043325021 - 2⁶ = 1043324957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043325061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066306 + ... + 1067283.

It is an arithmetic number, because the mean of its divisors is an integer number (174954380).

Almost surely, 2^1043325021 is an apocalyptic number.

It is an amenable number.

1043325021 is a deficient number, since it is larger than the sum of its proper divisors (356310019).

1043325021 is a wasteful number, since it uses less digits than its factorization.

1043325021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133755.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1043325021 is about 32300.5421161937. The cubic root of 1043325021 is about 1014.2379911639.

Adding to 1043325021 its reverse (1205233401), we get a palindrome (2248558422).

The spelling of 1043325021 in words is "one billion, forty-three million, three hundred twenty-five thousand, twenty-one".