1401421011 has 16 divisors (see below), whose sum is σ = 1880567040. Its totient is φ = 928297440.

The previous prime is 1401421009. The next prime is 1401421031. The reversal of 1401421011 is 1101241041.

It is not a de Polignac number, because 1401421011 - 2¹ = 1401421009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401421001) 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, 330060 + ... + 334278.

It is an arithmetic number, because the mean of its divisors is an integer number (117535440).

Almost surely, 2^1401421011 is an apocalyptic number.

1401421011 is a deficient number, since it is larger than the sum of its proper divisors (479146029).

1401421011 is a wasteful number, since it uses less digits than its factorization.

1401421011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906.

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

The square root of 1401421011 is about 37435.5581099040. The cubic root of 1401421011 is about 1119.0673067845.

Adding to 1401421011 its reverse (1101241041), we get a palindrome (2502662052).

The spelling of 1401421011 in words is "one billion, four hundred one million, four hundred twenty-one thousand, eleven".