1331023104 has 90 divisors (see below), whose sum is σ = 3968931890. Its totient is φ = 443667456.

The previous prime is 1331023103. The next prime is 1331023117. The reversal of 1331023104 is 4013201331.

It can be written as a sum of positive squares in only one way, i.e., 1214383104 + 116640000 = 34848^2 + 10800^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331023103) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11359 + ... + 52830.

Almost surely, 2^1331023104 is an apocalyptic number.

It is an amenable number.

1331023104 is an abundant number, since it is smaller than the sum of its proper divisors (2637908786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331023104 is an frugal number, since it uses more digits than its factorization.

1331023104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64217 (or 64194 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1331023104 is about 36483.1893342674. The cubic root of 1331023104 is about 1100.0063647015.

Adding to 1331023104 its reverse (4013201331), we get a palindrome (5344224435).

The spelling of 1331023104 in words is "one billion, three hundred thirty-one million, twenty-three thousand, one hundred four".