1121245344 has 36 divisors (see below), whose sum is σ = 3188542266. Its totient is φ = 373748352.

The previous prime is 1121245337. The next prime is 1121245379. The reversal of 1121245344 is 4435421211.

1121245344 is a `hidden beast` number, since 1 + 1 + 2 + 124 + 534 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 573123600 + 548121744 = 23940^2 + 23412^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1121245344² = 2514382242883356672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1946319 + ... + 1946894.

Almost surely, 2^1121245344 is an apocalyptic number.

It is an amenable number.

1121245344 is an abundant number, since it is smaller than the sum of its proper divisors (2067296922).

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

1121245344 is a wasteful number, since it uses less digits than its factorization.

1121245344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893229 (or 3893218 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1121245344 is about 33485.0017769150. The cubic root of 1121245344 is about 1038.8835850217.

Adding to 1121245344 its reverse (4435421211), we get a palindrome (5556666555).

It can be divided in two parts, 112 and 1245344, that added together give a square (1245456 = 1116²).

The spelling of 1121245344 in words is "one billion, one hundred twenty-one million, two hundred forty-five thousand, three hundred forty-four".