1121312104 has 32 divisors (see below), whose sum is σ = 2305635840. Its totient is φ = 507011200.

The previous prime is 1121312089. The next prime is 1121312107. The reversal of 1121312104 is 4012131211.

It is not an unprimeable number, because it can be changed into a prime (1121312107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16549 + ... + 50164.

It is an arithmetic number, because the mean of its divisors is an integer number (72051120).

Almost surely, 2^1121312104 is an apocalyptic number.

It is an amenable number.

1121312104 is an abundant number, since it is smaller than the sum of its proper divisors (1184323736).

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

1121312104 is a wasteful number, since it uses less digits than its factorization.

1121312104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66921 (or 66917 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1121312104 is about 33485.9986262916. The cubic root of 1121312104 is about 1038.9042033137.

Adding to 1121312104 its reverse (4012131211), we get a palindrome (5133443315).

The spelling of 1121312104 in words is "one billion, one hundred twenty-one million, three hundred twelve thousand, one hundred four".