1121231134 has 4 divisors (see below), whose sum is σ = 1681846704. Its totient is φ = 560615566.

The previous prime is 1121231113. The next prime is 1121231143. The reversal of 1121231134 is 4311321211.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280307782 + ... + 280307785.

It is an arithmetic number, because the mean of its divisors is an integer number (420461676).

Almost surely, 2^1121231134 is an apocalyptic number.

1121231134 is a deficient number, since it is larger than the sum of its proper divisors (560615570).

1121231134 is an equidigital number, since it uses as much as digits as its factorization.

1121231134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560615569.

The product of its digits is 144, while the sum is 19.

The square root of 1121231134 is about 33484.7895916937. The cubic root of 1121231134 is about 1038.8791962712.

Adding to 1121231134 its reverse (4311321211), we get a palindrome (5432552345).

The spelling of 1121231134 in words is "one billion, one hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty-four".