1401420111 has 16 divisors (see below), whose sum is σ = 2299766784. Its totient is φ = 739210464.

The previous prime is 1401420091. The next prime is 1401420113. The reversal of 1401420111 is 1110241041.

It is not a de Polignac number, because 1401420111 - 2¹⁴ = 1401403727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401420113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2566431 + ... + 2566976.

It is an arithmetic number, because the mean of its divisors is an integer number (143735424).

Almost surely, 2^1401420111 is an apocalyptic number.

1401420111 is a deficient number, since it is larger than the sum of its proper divisors (898346673).

1401420111 is a wasteful number, since it uses less digits than its factorization.

1401420111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133430.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1401420111 is about 37435.5460892452. The cubic root of 1401420111 is about 1119.0670672275.

Adding to 1401420111 its reverse (1110241041), we get a palindrome (2511661152).

The spelling of 1401420111 in words is "one billion, four hundred one million, four hundred twenty thousand, one hundred eleven".