234506042521 has 2 divisors, whose sum is σ = 234506042522. Its totient is φ = 234506042520.

The previous prime is 234506042429. The next prime is 234506042527. The reversal of 234506042521 is 125240605432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127423297296 + 107082745225 = 356964^2 + 327235^2 .

It is a cyclic number.

It is not a de Polignac number, because 234506042521 - 2¹⁷ = 234505911449 is a prime.

It is a super-2 number, since 2×234506042521² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (234506042527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117253021260 + 117253021261.

It is an arithmetic number, because the mean of its divisors is an integer number (117253021261).

Almost surely, 2^234506042521 is an apocalyptic number.

It is an amenable number.

234506042521 is a deficient number, since it is larger than the sum of its proper divisors (1).

234506042521 is an equidigital number, since it uses as much as digits as its factorization.

234506042521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 234506042521 its reverse (125240605432), we get a palindrome (359746647953).

The spelling of 234506042521 in words is "two hundred thirty-four billion, five hundred six million, forty-two thousand, five hundred twenty-one".