236021432431 has 2 divisors, whose sum is σ = 236021432432. Its totient is φ = 236021432430.

The previous prime is 236021432429. The next prime is 236021432443. The reversal of 236021432431 is 134234120632.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 236021432431 - 2¹ = 236021432429 is a prime.

It is a super-2 number, since 2×236021432431² (a number of 24 digits) contains 22 as substring.

Together with 236021432429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 236021432393 and 236021432402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236021438431) 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, 118010716215 + 118010716216.

It is an arithmetic number, because the mean of its divisors is an integer number (118010716216).

Almost surely, 2^236021432431 is an apocalyptic number.

236021432431 is a deficient number, since it is larger than the sum of its proper divisors (1).

236021432431 is an equidigital number, since it uses as much as digits as its factorization.

236021432431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 236021432431 in words is "two hundred thirty-six billion, twenty-one million, four hundred thirty-two thousand, four hundred thirty-one".