1121317646 has 4 divisors (see below), whose sum is σ = 1681976472. Its totient is φ = 560658822.

The previous prime is 1121317621. The next prime is 1121317649. The reversal of 1121317646 is 6467131211.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121317649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280329410 + ... + 280329413.

It is an arithmetic number, because the mean of its divisors is an integer number (420494118).

Almost surely, 2^1121317646 is an apocalyptic number.

1121317646 is a deficient number, since it is larger than the sum of its proper divisors (560658826).

1121317646 is an equidigital number, since it uses as much as digits as its factorization.

1121317646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560658825.

The product of its digits is 6048, while the sum is 32.

The square root of 1121317646 is about 33486.0813771931. The cubic root of 1121317646 is about 1038.9059148793.

Adding to 1121317646 its reverse (6467131211), we get a palindrome (7588448857).

The spelling of 1121317646 in words is "one billion, one hundred twenty-one million, three hundred seventeen thousand, six hundred forty-six".