4020552023412 has 24 divisors (see below), whose sum is σ = 9381343107136. Its totient is φ = 1340176143168.

The previous prime is 4020552023407. The next prime is 4020552023419. The reversal of 4020552023412 is 2143202550204.

It is a super-2 number, since 2×4020552023412² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4020552023412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020552023419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372833 + ... + 3150519.

Almost surely, 2^{4020552023412} is an apocalyptic number.

It is an amenable number.

4020552023412 is an abundant number, since it is smaller than the sum of its proper divisors (5360791083724).

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

4020552023412 is a wasteful number, since it uses less digits than its factorization.

4020552023412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966167 (or 1966165 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 4020552023412 its reverse (2143202550204), we get a palindrome (6163754573616).

The spelling of 4020552023412 in words is "four trillion, twenty billion, five hundred fifty-two million, twenty-three thousand, four hundred twelve".