1131421342 has 8 divisors (see below), whose sum is σ = 1698696576. Its totient is φ = 565189152.

The previous prime is 1131421327. The next prime is 1131421373. The reversal of 1131421342 is 2431241311.

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

It is a super-2 number, since 2×1131421342² = 2560228506266161928, which contains 22 as substring.

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, 258043 + ... + 262390.

It is an arithmetic number, because the mean of its divisors is an integer number (212337072).

Almost surely, 2^1131421342 is an apocalyptic number.

1131421342 is a deficient number, since it is larger than the sum of its proper divisors (567275234).

1131421342 is a wasteful number, since it uses less digits than its factorization.

1131421342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521522.

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

The square root of 1131421342 is about 33636.6071713542. The cubic root of 1131421342 is about 1042.0169628945.

Adding to 1131421342 its reverse (2431241311), we get a palindrome (3562662653).

The spelling of 1131421342 in words is "one billion, one hundred thirty-one million, four hundred twenty-one thousand, three hundred forty-two".