1123131024520 has 16 divisors (see below), whose sum is σ = 2527044805260. Its totient is φ = 449252409792.

The previous prime is 1123131024511. The next prime is 1123131024557. The reversal of 1123131024520 is 254201313211.

It can be written as a sum of positive squares in 2 ways, for example, as 1112784472996 + 10346551524 = 1054886^2 + 101718^2 .

It is a super-2 number, since 2×1123131024520² (a number of 25 digits) contains 22 as substring.

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, 14039137767 + ... + 14039137846.

Almost surely, 2^{1123131024520} is an apocalyptic number.

1123131024520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123131024520 is an abundant number, since it is smaller than the sum of its proper divisors (1403913780740).

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

1123131024520 is a wasteful number, since it uses less digits than its factorization.

1123131024520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28078275624 (or 28078275620 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 1123131024520 its reverse (254201313211), we get a palindrome (1377332337731).

The spelling of 1123131024520 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-one million, twenty-four thousand, five hundred twenty".