1041212321 has 4 divisors (see below), whose sum is σ = 1041748500. Its totient is φ = 1040676144.

The previous prime is 1041212309. The next prime is 1041212329. The reversal of 1041212321 is 1232121401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 324900625 + 716311696 = 18025^2 + 26764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1041212321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1041212321.

It is not an unprimeable number, because it can be changed into a prime (1041212329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265166 + ... + 269063.

It is an arithmetic number, because the mean of its divisors is an integer number (260437125).

Almost surely, 2^1041212321 is an apocalyptic number.

It is an amenable number.

1041212321 is a deficient number, since it is larger than the sum of its proper divisors (536179).

1041212321 is an equidigital number, since it uses as much as digits as its factorization.

1041212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536178.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1041212321 is about 32267.8217579061. The cubic root of 1041212321 is about 1013.5529286492.

Adding to 1041212321 its reverse (1232121401), we get a palindrome (2273333722).

The spelling of 1041212321 in words is "one billion, forty-one million, two hundred twelve thousand, three hundred twenty-one".