2131340030020 has 24 divisors (see below), whose sum is σ = 4475877231168. Its totient is φ = 852523980000.

The previous prime is 2131340029979. The next prime is 2131340030077. The reversal of 2131340030020 is 200300431312.

It is a super-2 number, since 2×2131340030020² (a number of 25 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 2131340030020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776295 + ... + 2205745.

It is an arithmetic number, because the mean of its divisors is an integer number (186494884632).

Almost surely, 2^{2131340030020} is an apocalyptic number.

2131340030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131340030020 is an abundant number, since it is smaller than the sum of its proper divisors (2344537201148).

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

2131340030020 is a wasteful number, since it uses less digits than its factorization.

2131340030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504011 (or 1504009 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2131340030020 its reverse (200300431312), we get a palindrome (2331640461332).

The spelling of 2131340030020 in words is "two trillion, one hundred thirty-one billion, three hundred forty million, thirty thousand, twenty".