2102344213440 has 112 divisors (see below), whose sum is σ = 6675487771680. Its totient is φ = 560579358720.

The previous prime is 2102344213439. The next prime is 2102344213447. The reversal of 2102344213440 is 443124432012.

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 = 2102344213398 and 2102344213407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102344213447) 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, 12617070 + ... + 12782610.

It is an arithmetic number, because the mean of its divisors is an integer number (59602569390).

Almost surely, 2^{2102344213440} is an apocalyptic number.

2102344213440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102344213440 is an abundant number, since it is smaller than the sum of its proper divisors (4573143558240).

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

2102344213440 is a wasteful number, since it uses less digits than its factorization.

2102344213440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178790 (or 178780 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2102344213440 its reverse (443124432012), we get a palindrome (2545468645452).

The spelling of 2102344213440 in words is "two trillion, one hundred two billion, three hundred forty-four million, two hundred thirteen thousand, four hundred forty".