12011432020 has 48 divisors (see below), whose sum is σ = 29034875520. Its totient is φ = 4088571264.

The previous prime is 12011432011. The next prime is 12011432033. The reversal of 12011432020 is 2023411021.

It is a super-4 number, since 4×12011432020⁴ (a number of 41 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011431985 and 12011432003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289159 + ... + 328078.

It is an arithmetic number, because the mean of its divisors is an integer number (604893240).

Almost surely, 2^12011432020 is an apocalyptic number.

12011432020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011432020 is an abundant number, since it is smaller than the sum of its proper divisors (17023443500).

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

12011432020 is a wasteful number, since it uses less digits than its factorization.

12011432020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617392 (or 617390 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12011432020 its reverse (2023411021), we get a palindrome (14034843041).

The spelling of 12011432020 in words is "twelve billion, eleven million, four hundred thirty-two thousand, twenty".