20140161131 has 2 divisors, whose sum is σ = 20140161132. Its totient is φ = 20140161130.

The previous prime is 20140161121. The next prime is 20140161157. The reversal of 20140161131 is 13116104102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20140161131 - 2¹⁴ = 20140144747 is a prime.

It is a super-2 number, since 2×20140161131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20140161121) 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 as a sum of consecutive naturals, namely, 10070080565 + 10070080566.

It is an arithmetic number, because the mean of its divisors is an integer number (10070080566).

Almost surely, 2^20140161131 is an apocalyptic number.

20140161131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20140161131 is an equidigital number, since it uses as much as digits as its factorization.

20140161131 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20140161131 its reverse (13116104102), we get a palindrome (33256265233).

The spelling of 20140161131 in words is "twenty billion, one hundred forty million, one hundred sixty-one thousand, one hundred thirty-one".