1401133111 has 4 divisors (see below), whose sum is σ = 1601294992. Its totient is φ = 1200971232.

The previous prime is 1401133103. The next prime is 1401133157. The reversal of 1401133111 is 1113311041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1113311041 = 281 ⋅3961961.

It is a cyclic number.

It is not a de Polignac number, because 1401133111 - 2³ = 1401133103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401130111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100080930 + ... + 100080943.

It is an arithmetic number, because the mean of its divisors is an integer number (400323748).

Almost surely, 2^1401133111 is an apocalyptic number.

1401133111 is a deficient number, since it is larger than the sum of its proper divisors (200161881).

1401133111 is an equidigital number, since it uses as much as digits as its factorization.

1401133111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200161880.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1401133111 is about 37431.7126378155. The cubic root of 1401133111 is about 1118.9906699186.

Adding to 1401133111 its reverse (1113311041), we get a palindrome (2514444152).

The spelling of 1401133111 in words is "one billion, four hundred one million, one hundred thirty-three thousand, one hundred eleven".