20051010534120 has 64 divisors (see below), whose sum is σ = 60392685205440. Its totient is φ = 5325633600000.

The previous prime is 20051010534109. The next prime is 20051010534127. The reversal of 20051010534120 is 2143501015002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20051010534127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332821981 + ... + 332882220.

It is an arithmetic number, because the mean of its divisors is an integer number (943635706335).

Almost surely, 2^{20051010534120} is an apocalyptic number.

20051010534120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20051010534120 is an abundant number, since it is smaller than the sum of its proper divisors (40341674671320).

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

20051010534120 is a wasteful number, since it uses less digits than its factorization.

20051010534120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665704466 (or 665704462 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 20051010534120 its reverse (2143501015002), we get a palindrome (22194511549122).

The spelling of 20051010534120 in words is "twenty trillion, fifty-one billion, ten million, five hundred thirty-four thousand, one hundred twenty".