20544212312 has 32 divisors (see below), whose sum is σ = 41490111600. Its totient is φ = 9480434304.

The previous prime is 20544212267. The next prime is 20544212317. The reversal of 20544212312 is 21321244502.

It is a super-3 number, since 3×20544212312³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20544212317) 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, 890183 + ... + 912969.

Almost surely, 2^20544212312 is an apocalyptic number.

It is an amenable number.

20544212312 is an abundant number, since it is smaller than the sum of its proper divisors (20945899288).

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

20544212312 is a wasteful number, since it uses less digits than its factorization.

20544212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31475 (or 31471 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20544212312 its reverse (21321244502), we get a palindrome (41865456814).

The spelling of 20544212312 in words is "twenty billion, five hundred forty-four million, two hundred twelve thousand, three hundred twelve".