1223113040 has 20 divisors (see below), whose sum is σ = 2843738004. Its totient is φ = 489245184.

The previous prime is 1223112977. The next prime is 1223113063. The reversal of 1223113040 is 403113221.

It can be written as a sum of positive squares in 2 ways, for example, as 722964544 + 500148496 = 26888^2 + 22364^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7644377 + ... + 7644536.

Almost surely, 2^1223113040 is an apocalyptic number.

1223113040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223113040 is an abundant number, since it is smaller than the sum of its proper divisors (1620624964).

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

1223113040 is a wasteful number, since it uses less digits than its factorization.

1223113040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15288926 (or 15288920 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1223113040 is about 34973.0330397579. The cubic root of 1223113040 is about 1069.4378040619.

Adding to 1223113040 its reverse (403113221), we get a palindrome (1626226261).

The spelling of 1223113040 in words is "one billion, two hundred twenty-three million, one hundred thirteen thousand, forty".