235230545021 has 2 divisors, whose sum is σ = 235230545022. Its totient is φ = 235230545020.

The previous prime is 235230544979. The next prime is 235230545041. The reversal of 235230545021 is 120545032532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223303502500 + 11927042521 = 472550^2 + 109211^2 .

It is a cyclic number.

It is not a de Polignac number, because 235230545021 - 2¹⁰ = 235230543997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235230545041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117615272510 + 117615272511.

It is an arithmetic number, because the mean of its divisors is an integer number (117615272511).

Almost surely, 2^235230545021 is an apocalyptic number.

It is an amenable number.

235230545021 is a deficient number, since it is larger than the sum of its proper divisors (1).

235230545021 is an equidigital number, since it uses as much as digits as its factorization.

235230545021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 235230545021 its reverse (120545032532), we get a palindrome (355775577553).

The spelling of 235230545021 in words is "two hundred thirty-five billion, two hundred thirty million, five hundred forty-five thousand, twenty-one".