400445200231 has 2 divisors, whose sum is σ = 400445200232. Its totient is φ = 400445200230.

The previous prime is 400445200189. The next prime is 400445200237. The reversal of 400445200231 is 132002544004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400445200231 - 2³⁷ = 263006246759 is a prime.

It is a super-2 number, since 2×400445200231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400445200196 and 400445200205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400445200237) 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, 200222600115 + 200222600116.

It is an arithmetic number, because the mean of its divisors is an integer number (200222600116).

Almost surely, 2^400445200231 is an apocalyptic number.

400445200231 is a deficient number, since it is larger than the sum of its proper divisors (1).

400445200231 is an equidigital number, since it uses as much as digits as its factorization.

400445200231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 400445200231 its reverse (132002544004), we get a palindrome (532447744235).

The spelling of 400445200231 in words is "four hundred billion, four hundred forty-five million, two hundred thousand, two hundred thirty-one".