1123067520 has 96 divisors (see below), whose sum is σ = 3878112420. Its totient is φ = 299483136.

The previous prime is 1123067461. The next prime is 1123067521. The reversal of 1123067520 is 257603211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1111288896 + 11778624 = 33336^2 + 3432^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1123067520² = 2522561308957900800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123067521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91729 + ... + 103248.

Almost surely, 2^1123067520 is an apocalyptic number.

1123067520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123067520 is an abundant number, since it is smaller than the sum of its proper divisors (2755044900).

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

1123067520 is a wasteful number, since it uses less digits than its factorization.

1123067520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195002 (or 194987 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1123067520 is about 33512.1995697089. The cubic root of 1123067520 is about 1039.4460560854.

The spelling of 1123067520 in words is "one billion, one hundred twenty-three million, sixty-seven thousand, five hundred twenty".