1122312138 has 8 divisors (see below), whose sum is σ = 2244624288. Its totient is φ = 374104044.

The previous prime is 1122312131. The next prime is 1122312187. The reversal of 1122312138 is 8312132211.

1122312138 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1122312138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1122312131) 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, 93526006 + ... + 93526017.

It is an arithmetic number, because the mean of its divisors is an integer number (280578036).

Almost surely, 2^1122312138 is an apocalyptic number.

1122312138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122312138 is a wasteful number, since it uses less digits than its factorization.

1122312138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187052028.

The product of its digits is 576, while the sum is 24.

The square root of 1122312138 is about 33500.9274199984. The cubic root of 1122312138 is about 1039.2129579172.

Adding to 1122312138 its reverse (8312132211), we get a palindrome (9434444349).

The spelling of 1122312138 in words is "one billion, one hundred twenty-two million, three hundred twelve thousand, one hundred thirty-eight".