212340110303442 has 32 divisors (see below), whose sum is σ = 465847112937024. Its totient is φ = 63989988033600.

The previous prime is 212340110303417. The next prime is 212340110303459. The reversal of 212340110303442 is 244303011043212.

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, 8887486393 + ... + 8887510284.

It is an arithmetic number, because the mean of its divisors is an integer number (14557722279282).

Almost surely, 2^{212340110303442} is an apocalyptic number.

212340110303442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212340110303442 is an abundant number, since it is smaller than the sum of its proper divisors (253507002633582).

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

212340110303442 is a wasteful number, since it uses less digits than its factorization.

212340110303442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17774996874.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 212340110303442 its reverse (244303011043212), we get a palindrome (456643121346654).

The spelling of 212340110303442 in words is "two hundred twelve trillion, three hundred forty billion, one hundred ten million, three hundred three thousand, four hundred forty-two".