1121431342 has 8 divisors (see below), whose sum is σ = 1682512776. Its totient is φ = 560593752.

The previous prime is 1121431331. The next prime is 1121431393. The reversal of 1121431342 is 2431341211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48993 + ... + 68140.

It is an arithmetic number, because the mean of its divisors is an integer number (210314097).

Almost surely, 2^1121431342 is an apocalyptic number.

1121431342 is a deficient number, since it is larger than the sum of its proper divisors (561081434).

1121431342 is a wasteful number, since it uses less digits than its factorization.

1121431342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121922.

The product of its digits is 576, while the sum is 22.

The square root of 1121431342 is about 33487.7789947318. The cubic root of 1121431342 is about 1038.9410269801.

Adding to 1121431342 its reverse (2431341211), we get a palindrome (3552772553).

The spelling of 1121431342 in words is "one billion, one hundred twenty-one million, four hundred thirty-one thousand, three hundred forty-two".