2131340443140 has 24 divisors (see below), whose sum is σ = 5967753240960. Its totient is φ = 568357451488.

The previous prime is 2131340443139. The next prime is 2131340443201. The reversal of 2131340443140 is 413440431312.

It is a super-2 number, since 2×2131340443140² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2131340443098 and 2131340443107.

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, 17761170300 + ... + 17761170419.

It is an arithmetic number, because the mean of its divisors is an integer number (248656385040).

Almost surely, 2^{2131340443140} is an apocalyptic number.

2131340443140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131340443140 is an abundant number, since it is smaller than the sum of its proper divisors (3836412797820).

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

2131340443140 is a wasteful number, since it uses less digits than its factorization.

2131340443140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35522340731 (or 35522340729 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 2131340443140 its reverse (413440431312), we get a palindrome (2544780874452).

The spelling of 2131340443140 in words is "two trillion, one hundred thirty-one billion, three hundred forty million, four hundred forty-three thousand, one hundred forty".