1123233240 has 64 divisors (see below), whose sum is σ = 3433298400. Its totient is φ = 293875712.

The previous prime is 1123233233. The next prime is 1123233247. The reversal of 1123233240 is 423323211.

It is an interprime number because it is at equal distance from previous prime (1123233233) and next prime (1123233247).

It is a super-2 number, since 2×1123233240² = 2523305822881795200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123233247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81945 + ... + 94664.

Almost surely, 2^1123233240 is an apocalyptic number.

1123233240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123233240 is an abundant number, since it is smaller than the sum of its proper divisors (2310065160).

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

1123233240 is a wasteful number, since it uses less digits than its factorization.

1123233240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176676 (or 176672 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1123233240 is about 33514.6720109268. The cubic root of 1123233240 is about 1039.4971805059.

Adding to 1123233240 its reverse (423323211), we get a palindrome (1546556451).

The spelling of 1123233240 in words is "one billion, one hundred twenty-three million, two hundred thirty-three thousand, two hundred forty".