402201444431 has 2 divisors, whose sum is σ = 402201444432. Its totient is φ = 402201444430.

The previous prime is 402201444401. The next prime is 402201444439. The reversal of 402201444431 is 134444102204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402201444431 - 2²² = 402197250127 is a prime.

It is a super-2 number, since 2×402201444431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402201444394 and 402201444403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402201444439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201100722215 + 201100722216.

It is an arithmetic number, because the mean of its divisors is an integer number (201100722216).

Almost surely, 2^402201444431 is an apocalyptic number.

402201444431 is a deficient number, since it is larger than the sum of its proper divisors (1).

402201444431 is an equidigital number, since it uses as much as digits as its factorization.

402201444431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 402201444431 its reverse (134444102204), we get a palindrome (536645546635).

The spelling of 402201444431 in words is "four hundred two billion, two hundred one million, four hundred forty-four thousand, four hundred thirty-one".