1321412434 has 32 divisors (see below), whose sum is σ = 2072556720. Its totient is φ = 631099392.

The previous prime is 1321412359. The next prime is 1321412447. The reversal of 1321412434 is 4342141231.

It can be written as a sum of positive squares in 8 ways, for example, as 212722225 + 1108690209 = 14585^2 + 33297^2 .

It is a super-2 number, since 2×1321412434² = 3492261641459608712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321412399 and 1321412408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3743202 + ... + 3743554.

Almost surely, 2^1321412434 is an apocalyptic number.

1321412434 is a deficient number, since it is larger than the sum of its proper divisors (751144286).

1321412434 is a wasteful number, since it uses less digits than its factorization.

1321412434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its digits is 2304, while the sum is 25.

The square root of 1321412434 is about 36351.2370353472. The cubic root of 1321412434 is about 1097.3524299695.

Adding to 1321412434 its reverse (4342141231), we get a palindrome (5663553665).

The spelling of 1321412434 in words is "one billion, three hundred twenty-one million, four hundred twelve thousand, four hundred thirty-four".