1213302404 has 12 divisors (see below), whose sum is σ = 2123903628. Its totient is φ = 606472800.

The previous prime is 1213302353. The next prime is 1213302407. The reversal of 1213302404 is 4042033121.

It can be written as a sum of positive squares in 2 ways, for example, as 249324100 + 963978304 = 15790^2 + 31048^2 .

It is not an unprimeable number, because it can be changed into a prime (1213302407) 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, 28667 + ... + 56994.

It is an arithmetic number, because the mean of its divisors is an integer number (176991969).

Almost surely, 2^1213302404 is an apocalyptic number.

It is an amenable number.

1213302404 is a deficient number, since it is larger than the sum of its proper divisors (910601224).

1213302404 is a wasteful number, since it uses less digits than its factorization.

1213302404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89206 (or 89204 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1213302404 is about 34832.4906373346. The cubic root of 1213302404 is about 1066.5707911656.

Adding to 1213302404 its reverse (4042033121), we get a palindrome (5255335525).

The spelling of 1213302404 in words is "one billion, two hundred thirteen million, three hundred two thousand, four hundred four".