1123251404 has 24 divisors (see below), whose sum is σ = 2270531088. Its totient is φ = 480535040.

The previous prime is 1123251383. The next prime is 1123251407. The reversal of 1123251404 is 4041523211.

It is a self number, because there is not a number n which added to its sum of digits gives 1123251404.

It is not an unprimeable number, because it can be changed into a prime (1123251407) 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, 750089 + ... + 751584.

It is an arithmetic number, because the mean of its divisors is an integer number (94605462).

Almost surely, 2^1123251404 is an apocalyptic number.

It is an amenable number.

1123251404 is an abundant number, since it is smaller than the sum of its proper divisors (1147279684).

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

1123251404 is a wasteful number, since it uses less digits than its factorization.

1123251404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501705 (or 1501703 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1123251404 is about 33514.9429956251. The cubic root of 1123251404 is about 1039.5027837722.

Adding to 1123251404 its reverse (4041523211), we get a palindrome (5164774615).

The spelling of 1123251404 in words is "one billion, one hundred twenty-three million, two hundred fifty-one thousand, four hundred four".