2102323404040 has 32 divisors (see below), whose sum is σ = 4730842428480. Its totient is φ = 840820069312.

The previous prime is 2102323403989. The next prime is 2102323404043. The reversal of 2102323404040 is 404043232012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2102323403996 and 2102323404014.

It is not an unprimeable number, because it can be changed into a prime (2102323404043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103414 + ... + 3719653.

It is an arithmetic number, because the mean of its divisors is an integer number (147838825890).

Almost surely, 2^{2102323404040} is an apocalyptic number.

2102323404040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102323404040 is an abundant number, since it is smaller than the sum of its proper divisors (2628519024440).

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

2102323404040 is a wasteful number, since it uses less digits than its factorization.

2102323404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6830781 (or 6830777 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 2102323404040 its reverse (404043232012), we get a palindrome (2506366636052).

The spelling of 2102323404040 in words is "two trillion, one hundred two billion, three hundred twenty-three million, four hundred four thousand, forty".