236152031221 has 2 divisors, whose sum is σ = 236152031222. Its totient is φ = 236152031220.

The previous prime is 236152031209. The next prime is 236152031233. The reversal of 236152031221 is 122130251632.

It is a balanced prime because it is at equal distance from previous prime (236152031209) and next prime (236152031233).

It can be written as a sum of positive squares in only one way, i.e., 173984088996 + 62167942225 = 417114^2 + 249335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-236152031221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 236152031221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236152034221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118076015610 + 118076015611.

It is an arithmetic number, because the mean of its divisors is an integer number (118076015611).

Almost surely, 2^236152031221 is an apocalyptic number.

It is an amenable number.

236152031221 is a deficient number, since it is larger than the sum of its proper divisors (1).

236152031221 is an equidigital number, since it uses as much as digits as its factorization.

236152031221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 236152031221 its reverse (122130251632), we get a palindrome (358282282853).

The spelling of 236152031221 in words is "two hundred thirty-six billion, one hundred fifty-two million, thirty-one thousand, two hundred twenty-one".