43402211401 has 2 divisors, whose sum is σ = 43402211402. Its totient is φ = 43402211400.

The previous prime is 43402211389. The next prime is 43402211497. The reversal of 43402211401 is 10411220434.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32175749376 + 11226462025 = 179376^2 + 105955^2 .

It is a cyclic number.

It is not a de Polignac number, because 43402211401 - 2⁷ = 43402211273 is a prime.

It is not a weakly prime, because it can be changed into another prime (43402217401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21701105700 + 21701105701.

It is an arithmetic number, because the mean of its divisors is an integer number (21701105701).

Almost surely, 2^43402211401 is an apocalyptic number.

It is an amenable number.

43402211401 is a deficient number, since it is larger than the sum of its proper divisors (1).

43402211401 is an equidigital number, since it uses as much as digits as its factorization.

43402211401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 43402211401 its reverse (10411220434), we get a palindrome (53813431835).

The spelling of 43402211401 in words is "forty-three billion, four hundred two million, two hundred eleven thousand, four hundred one".