1121343658 has 4 divisors (see below), whose sum is σ = 1682015490. Its totient is φ = 560671828.

The previous prime is 1121343623. The next prime is 1121343659. The reversal of 1121343658 is 8563431211.

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

It can be written as a sum of positive squares in only one way, i.e., 1116428569 + 4915089 = 33413^2 + 2217^2 .

It is not an unprimeable number, because it can be changed into a prime (1121343659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280335913 + ... + 280335916.

Almost surely, 2^1121343658 is an apocalyptic number.

1121343658 is a deficient number, since it is larger than the sum of its proper divisors (560671832).

1121343658 is an equidigital number, since it uses as much as digits as its factorization.

1121343658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560671831.

The product of its digits is 17280, while the sum is 34.

The square root of 1121343658 is about 33486.4697751196. The cubic root of 1121343658 is about 1038.9139482294.

Adding to 1121343658 its reverse (8563431211), we get a palindrome (9684774869).

The spelling of 1121343658 in words is "one billion, one hundred twenty-one million, three hundred forty-three thousand, six hundred fifty-eight".