1123196520 has 32 divisors (see below), whose sum is σ = 3369589920. Its totient is φ = 299519040.

The previous prime is 1123196519. The next prime is 1123196549. The reversal of 1123196520 is 256913211.

It is a super-2 number, since 2×1123196520² = 2523140845080220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4679866 + ... + 4680105.

It is an arithmetic number, because the mean of its divisors is an integer number (105299685).

Almost surely, 2^1123196520 is an apocalyptic number.

1123196520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123196520 is an abundant number, since it is smaller than the sum of its proper divisors (2246393400).

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

1123196520 is a wasteful number, since it uses less digits than its factorization.

1123196520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9359985 (or 9359981 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1123196520 is about 33514.1241866769. The cubic root of 1123196520 is about 1039.4858528638.

The spelling of 1123196520 in words is "one billion, one hundred twenty-three million, one hundred ninety-six thousand, five hundred twenty".