131011421020401 has 16 divisors (see below), whose sum is σ = 176646461552000. Its totient is φ = 86361954651648.

The previous prime is 131011421020387. The next prime is 131011421020409. The reversal of 131011421020401 is 104020124110131.

It is not a de Polignac number, because 131011421020401 - 2⁹ = 131011421019889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131011421020409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411182176 + ... + 411500673.

It is an arithmetic number, because the mean of its divisors is an integer number (11040403847000).

Almost surely, 2^{131011421020401} is an apocalyptic number.

It is an amenable number.

131011421020401 is a deficient number, since it is larger than the sum of its proper divisors (45635040531599).

131011421020401 is a wasteful number, since it uses less digits than its factorization.

131011421020401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822683448.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 131011421020401 its reverse (104020124110131), we get a palindrome (235031545130532).

The spelling of 131011421020401 in words is "one hundred thirty-one trillion, eleven billion, four hundred twenty-one million, twenty thousand, four hundred one".