1121688914 has 4 divisors (see below), whose sum is σ = 1682533374. Its totient is φ = 560844456.

The previous prime is 1121688913. The next prime is 1121688973. The reversal of 1121688914 is 4198861211.

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., 1064912689 + 56776225 = 32633^2 + 7535^2 .

It is not an unprimeable number, because it can be changed into a prime (1121688913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280422227 + ... + 280422230.

Almost surely, 2^1121688914 is an apocalyptic number.

1121688914 is a deficient number, since it is larger than the sum of its proper divisors (560844460).

1121688914 is an equidigital number, since it uses as much as digits as its factorization.

1121688914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560844459.

The product of its digits is 27648, while the sum is 41.

The square root of 1121688914 is about 33491.6245350983. The cubic root of 1121688914 is about 1039.0205627255.

The spelling of 1121688914 in words is "one billion, one hundred twenty-one million, six hundred eighty-eight thousand, nine hundred fourteen".