20012102134140 has 48 divisors (see below), whose sum is σ = 56194441581600. Its totient is φ = 5321269559040.

The previous prime is 20012102134111. The next prime is 20012102134229. The reversal of 20012102134140 is 4143120121002.

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, 477822951 + ... + 477864830.

It is an arithmetic number, because the mean of its divisors is an integer number (1170717532950).

Almost surely, 2^{20012102134140} is an apocalyptic number.

20012102134140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012102134140 is an abundant number, since it is smaller than the sum of its proper divisors (36182339447460).

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

20012102134140 is a wasteful number, since it uses less digits than its factorization.

20012102134140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955688142 (or 955688140 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20012102134140 its reverse (4143120121002), we get a palindrome (24155222255142).

The spelling of 20012102134140 in words is "twenty trillion, twelve billion, one hundred two million, one hundred thirty-four thousand, one hundred forty".