1321044104 has 8 divisors (see below), whose sum is σ = 2476957710. Its totient is φ = 660522048.

The previous prime is 1321044091. The next prime is 1321044107. The reversal of 1321044104 is 4014401231.

It can be written as a sum of positive squares in only one way, i.e., 1296144004 + 24900100 = 36002^2 + 4990^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1321044107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82565249 + ... + 82565264.

Almost surely, 2^1321044104 is an apocalyptic number.

It is an amenable number.

1321044104 is a deficient number, since it is larger than the sum of its proper divisors (1155913606).

1321044104 is a wasteful number, since it uses less digits than its factorization.

1321044104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165130519 (or 165130515 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1321044104 is about 36346.1704172530. The cubic root of 1321044104 is about 1097.2504619615.

Adding to 1321044104 its reverse (4014401231), we get a palindrome (5335445335).

The spelling of 1321044104 in words is "one billion, three hundred twenty-one million, forty-four thousand, one hundred four".