234031213121 has 2 divisors, whose sum is σ = 234031213122. Its totient is φ = 234031213120.

The previous prime is 234031213103. The next prime is 234031213147. The reversal of 234031213121 is 121312130432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197278105600 + 36753107521 = 444160^2 + 191711^2 .

It is a cyclic number.

It is not a de Polignac number, because 234031213121 - 2³⁴ = 216851343937 is a prime.

It is not a weakly prime, because it can be changed into another prime (234031213421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117015606560 + 117015606561.

It is an arithmetic number, because the mean of its divisors is an integer number (117015606561).

Almost surely, 2^234031213121 is an apocalyptic number.

It is an amenable number.

234031213121 is a deficient number, since it is larger than the sum of its proper divisors (1).

234031213121 is an equidigital number, since it uses as much as digits as its factorization.

234031213121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 234031213121 its reverse (121312130432), we get a palindrome (355343343553).

The spelling of 234031213121 in words is "two hundred thirty-four billion, thirty-one million, two hundred thirteen thousand, one hundred twenty-one".