12020540105632 has 48 divisors (see below), whose sum is σ = 23803823787912. Its totient is φ = 5975129190400.

The previous prime is 12020540105627. The next prime is 12020540105663. The reversal of 12020540105632 is 23650104502021.

It can be written as a sum of positive squares in 4 ways, for example, as 11972734906896 + 47805198736 = 3460164^2 + 218644^2 .

It is a super-2 number, since 2×12020540105632² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020540105594 and 12020540105603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93699132 + ... + 93827332.

Almost surely, 2^{12020540105632} is an apocalyptic number.

It is an amenable number.

12020540105632 is a deficient number, since it is larger than the sum of its proper divisors (11783283682280).

12020540105632 is a wasteful number, since it uses less digits than its factorization.

12020540105632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145321 (or 145313 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 12020540105632 its reverse (23650104502021), we get a palindrome (35670644607653).

The spelling of 12020540105632 in words is "twelve trillion, twenty billion, five hundred forty million, one hundred five thousand, six hundred thirty-two".