2143122020040 has 64 divisors (see below), whose sum is σ = 6430662264960. Its totient is φ = 571383987200.

The previous prime is 2143122020023. The next prime is 2143122020041. The reversal of 2143122020040 is 400202213412.

It is a junction number, because it is equal to n+sod(n) for n = 2143122019989 and 2143122020016.

It is not an unprimeable number, because it can be changed into a prime (2143122020041) 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, 1201761 + ... + 2393840.

It is an arithmetic number, because the mean of its divisors is an integer number (100479097890).

Almost surely, 2^{2143122020040} is an apocalyptic number.

2143122020040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143122020040 is an abundant number, since it is smaller than the sum of its proper divisors (4287540244920).

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

2143122020040 is a wasteful number, since it uses less digits than its factorization.

2143122020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600582 (or 3600578 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 2143122020040 its reverse (400202213412), we get a palindrome (2543324233452).

The spelling of 2143122020040 in words is "two trillion, one hundred forty-three billion, one hundred twenty-two million, twenty thousand, forty".