1631214011 has 16 divisors (see below), whose sum is σ = 2030035200. Its totient is φ = 1278916128.

The previous prime is 1631214001. The next prime is 1631214029. The reversal of 1631214011 is 1104121361.

It is a happy number.

It is not a de Polignac number, because 1631214011 - 2¹⁰ = 1631212987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1631214001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207605 + ... + 215318.

It is an arithmetic number, because the mean of its divisors is an integer number (126877200).

Almost surely, 2^1631214011 is an apocalyptic number.

1631214011 is a deficient number, since it is larger than the sum of its proper divisors (398821189).

1631214011 is a wasteful number, since it uses less digits than its factorization.

1631214011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422978.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1631214011 is about 40388.2905184163. The cubic root of 1631214011 is about 1177.1640243335.

Adding to 1631214011 its reverse (1104121361), we get a palindrome (2735335372).

The spelling of 1631214011 in words is "one billion, six hundred thirty-one million, two hundred fourteen thousand, eleven".