1401424111 has 2 divisors, whose sum is σ = 1401424112. Its totient is φ = 1401424110.

The previous prime is 1401424091. The next prime is 1401424117. The reversal of 1401424111 is 1114241041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401424111 - 2¹⁹ = 1400899823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401424117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700712055 + 700712056.

It is an arithmetic number, because the mean of its divisors is an integer number (700712056).

Almost surely, 2^1401424111 is an apocalyptic number.

1401424111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401424111 is an equidigital number, since it uses as much as digits as its factorization.

1401424111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1401424111 is about 37435.5995143660. The cubic root of 1401424111 is about 1119.0681319246.

Adding to 1401424111 its reverse (1114241041), we get a palindrome (2515665152).

The spelling of 1401424111 in words is "one billion, four hundred one million, four hundred twenty-four thousand, one hundred eleven".