2102134112040 has 64 divisors (see below), whose sum is σ = 6307099306560. Its totient is φ = 560507143680.

The previous prime is 2102134111999. The next prime is 2102134112051. The reversal of 2102134112040 is 402114312012.

It is a junction number, because it is equal to n+sod(n) for n = 2102134111998 and 2102134112016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127452 + ... + 2054388.

It is an arithmetic number, because the mean of its divisors is an integer number (98548426665).

Almost surely, 2^{2102134112040} is an apocalyptic number.

2102134112040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102134112040 is an abundant number, since it is smaller than the sum of its proper divisors (4204965194520).

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

2102134112040 is a wasteful number, since it uses less digits than its factorization.

2102134112040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936042 (or 1936038 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2102134112040 its reverse (402114312012), we get a palindrome (2504248424052).

The spelling of 2102134112040 in words is "two trillion, one hundred two billion, one hundred thirty-four million, one hundred twelve thousand, forty".