234040303122421 has 2 divisors, whose sum is σ = 234040303122422. Its totient is φ = 234040303122420.

The previous prime is 234040303122347. The next prime is 234040303122481. The reversal of 234040303122421 is 124221303040432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162558165028900 + 71482138093521 = 12749830^2 + 8454711^2 .

It is a cyclic number.

It is not a de Polignac number, because 234040303122421 - 2³⁷ = 233902864168949 is a prime.

It is a super-2 number, since 2×234040303122421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234040303122481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117020151561210 + 117020151561211.

It is an arithmetic number, because the mean of its divisors is an integer number (117020151561211).

Almost surely, 2^{234040303122421} is an apocalyptic number.

It is an amenable number.

234040303122421 is a deficient number, since it is larger than the sum of its proper divisors (1).

234040303122421 is an equidigital number, since it uses as much as digits as its factorization.

234040303122421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 234040303122421 its reverse (124221303040432), we get a palindrome (358261606162853).

The spelling of 234040303122421 in words is "two hundred thirty-four trillion, forty billion, three hundred three million, one hundred twenty-two thousand, four hundred twenty-one".