1121314431 has 16 divisors (see below), whose sum is σ = 1595946240. Its totient is φ = 698221440.

The previous prime is 1121314429. The next prime is 1121314457. The reversal of 1121314431 is 1344131211.

It is not a de Polignac number, because 1121314431 - 2¹ = 1121314429 is a prime.

It is a super-2 number, since 2×1121314431² = 2514692106337707522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121314398 and 1121314407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121314231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134490 + ... + 142583.

It is an arithmetic number, because the mean of its divisors is an integer number (99746640).

Almost surely, 2^1121314431 is an apocalyptic number.

1121314431 is a deficient number, since it is larger than the sum of its proper divisors (474631809).

1121314431 is a wasteful number, since it uses less digits than its factorization.

1121314431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277166.

The product of its digits is 288, while the sum is 21.

The square root of 1121314431 is about 33486.0333721389. The cubic root of 1121314431 is about 1038.9049219743.

Adding to 1121314431 its reverse (1344131211), we get a palindrome (2465445642).

The spelling of 1121314431 in words is "one billion, one hundred twenty-one million, three hundred fourteen thousand, four hundred thirty-one".