2021130042140 has 48 divisors (see below), whose sum is σ = 4630325787360. Its totient is φ = 734940410880.

The previous prime is 2021130042137. The next prime is 2021130042157. The reversal of 2021130042140 is 412400311202.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 15774656 + ... + 15902264.

It is an arithmetic number, because the mean of its divisors is an integer number (96465120570).

Almost surely, 2^{2021130042140} is an apocalyptic number.

2021130042140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021130042140 is an abundant number, since it is smaller than the sum of its proper divisors (2609195745220).

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

2021130042140 is a wasteful number, since it uses less digits than its factorization.

2021130042140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199622 (or 199620 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2021130042140 its reverse (412400311202), we get a palindrome (2433530353342).

The spelling of 2021130042140 in words is "two trillion, twenty-one billion, one hundred thirty million, forty-two thousand, one hundred forty".