400324233222031 has 2 divisors, whose sum is σ = 400324233222032. Its totient is φ = 400324233222030.

The previous prime is 400324233222029. The next prime is 400324233222041. The reversal of 400324233222031 is 130222332423004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400324233222031 - 2¹ = 400324233222029 is a prime.

It is a super-2 number, since 2×400324233222031² (a number of 30 digits) contains 22 as substring.

Together with 400324233222029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 400324233221984 and 400324233222002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400324233222041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200162116611015 + 200162116611016.

It is an arithmetic number, because the mean of its divisors is an integer number (200162116611016).

Almost surely, 2^{400324233222031} is an apocalyptic number.

400324233222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

400324233222031 is an equidigital number, since it uses as much as digits as its factorization.

400324233222031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 400324233222031 its reverse (130222332423004), we get a palindrome (530546565645035).

The spelling of 400324233222031 in words is "four hundred trillion, three hundred twenty-four billion, two hundred thirty-three million, two hundred twenty-two thousand, thirty-one".