234040015212 has 12 divisors (see below), whose sum is σ = 546093368856. Its totient is φ = 78013338400.

The previous prime is 234040015211. The next prime is 234040015217. The reversal of 234040015212 is 212510040432.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (234040015211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9751667289 + ... + 9751667312.

It is an arithmetic number, because the mean of its divisors is an integer number (45507780738).

Almost surely, 2^234040015212 is an apocalyptic number.

It is an amenable number.

234040015212 is an abundant number, since it is smaller than the sum of its proper divisors (312053353644).

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

234040015212 is a wasteful number, since it uses less digits than its factorization.

234040015212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19503334608 (or 19503334606 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 234040015212 its reverse (212510040432), we get a palindrome (446550055644).

The spelling of 234040015212 in words is "two hundred thirty-four billion, forty million, fifteen thousand, two hundred twelve".