1123890317 has 4 divisors (see below), whose sum is σ = 1226062176. Its totient is φ = 1021718460.

The previous prime is 1123890307. The next prime is 1123890329. The reversal of 1123890317 is 7130983211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1123890317 - 2⁶ = 1123890253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123890307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51085913 + ... + 51085934.

It is an arithmetic number, because the mean of its divisors is an integer number (306515544).

Almost surely, 2^1123890317 is an apocalyptic number.

It is an amenable number.

1123890317 is a deficient number, since it is larger than the sum of its proper divisors (102171859).

1123890317 is a wasteful number, since it uses less digits than its factorization.

1123890317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102171858.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1123890317 is about 33524.4734037688. The cubic root of 1123890317 is about 1039.6998384876.

The spelling of 1123890317 in words is "one billion, one hundred twenty-three million, eight hundred ninety thousand, three hundred seventeen".