234040434121 has 16 divisors (see below), whose sum is σ = 258853331520. Its totient is φ = 210272875200.

The previous prime is 234040434107. The next prime is 234040434163. The reversal of 234040434121 is 121434040432.

It is a cyclic number.

It is not a de Polignac number, because 234040434121 - 2⁹ = 234040433609 is a prime.

It is a super-2 number, since 2×234040434121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234040434121.

It is not an unprimeable number, because it can be changed into a prime (234040434101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433115 + ... + 1588048.

It is an arithmetic number, because the mean of its divisors is an integer number (16178333220).

Almost surely, 2^234040434121 is an apocalyptic number.

It is an amenable number.

234040434121 is a deficient number, since it is larger than the sum of its proper divisors (24812897399).

234040434121 is a wasteful number, since it uses less digits than its factorization.

234040434121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021336.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 234040434121 its reverse (121434040432), we get a palindrome (355474474553).

The spelling of 234040434121 in words is "two hundred thirty-four billion, forty million, four hundred thirty-four thousand, one hundred twenty-one".