234402213121 has 2 divisors, whose sum is σ = 234402213122. Its totient is φ = 234402213120.

The previous prime is 234402213079. The next prime is 234402213163. The reversal of 234402213121 is 121312204432.

It is a balanced prime because it is at equal distance from previous prime (234402213079) and next prime (234402213163).

It can be written as a sum of positive squares in only one way, i.e., 196283555521 + 38118657600 = 443039^2 + 195240^2 .

It is a cyclic number.

It is not a de Polignac number, because 234402213121 - 2²¹ = 234400115969 is a prime.

It is not a weakly prime, because it can be changed into another prime (234402213181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117201106560 + 117201106561.

It is an arithmetic number, because the mean of its divisors is an integer number (117201106561).

Almost surely, 2^234402213121 is an apocalyptic number.

It is an amenable number.

234402213121 is a deficient number, since it is larger than the sum of its proper divisors (1).

234402213121 is an equidigital number, since it uses as much as digits as its factorization.

234402213121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 234402213121 its reverse (121312204432), we get a palindrome (355714417553).

The spelling of 234402213121 in words is "two hundred thirty-four billion, four hundred two million, two hundred thirteen thousand, one hundred twenty-one".