2113212440042 has 16 divisors (see below), whose sum is σ = 3459451190112. Its totient is φ = 960143554320.

The previous prime is 2113212440033. The next prime is 2113212440063. The reversal of 2113212440042 is 2400442123112.

It is a junction number, because it is equal to n+sod(n) for n = 2113212439993 and 2113212440020.

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, 20324708 + ... + 20428415.

It is an arithmetic number, because the mean of its divisors is an integer number (216215699382).

Almost surely, 2^{2113212440042} is an apocalyptic number.

2113212440042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2113212440042 is a deficient number, since it is larger than the sum of its proper divisors (1346238750070).

2113212440042 is a wasteful number, since it uses less digits than its factorization.

2113212440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40755493.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 2113212440042 its reverse (2400442123112), we get a palindrome (4513654563154).

The spelling of 2113212440042 in words is "two trillion, one hundred thirteen billion, two hundred twelve million, four hundred forty thousand, forty-two".