1123340312 has 8 divisors (see below), whose sum is σ = 2106263100. Its totient is φ = 561670152.

The previous prime is 1123340311. The next prime is 1123340329. The reversal of 1123340312 is 2130433211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123340311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70208762 + ... + 70208777.

Almost surely, 2^1123340312 is an apocalyptic number.

It is an amenable number.

1123340312 is a deficient number, since it is larger than the sum of its proper divisors (982922788).

1123340312 is a wasteful number, since it uses less digits than its factorization.

1123340312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140417545 (or 140417541 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1123340312 is about 33516.2693628035. The cubic root of 1123340312 is about 1039.5302094150.

Adding to 1123340312 its reverse (2130433211), we get a palindrome (3253773523).

The spelling of 1123340312 in words is "one billion, one hundred twenty-three million, three hundred forty thousand, three hundred twelve".