20130131401 has 2 divisors, whose sum is σ = 20130131402. Its totient is φ = 20130131400.

The previous prime is 20130131389. The next prime is 20130131423. The reversal of 20130131401 is 10413103102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19944218176 + 185913225 = 141224^2 + 13635^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130131401 - 2²¹ = 20128034249 is a prime.

It is not a weakly prime, because it can be changed into another prime (20130131431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065065700 + 10065065701.

It is an arithmetic number, because the mean of its divisors is an integer number (10065065701).

Almost surely, 2^20130131401 is an apocalyptic number.

It is an amenable number.

20130131401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130131401 is an equidigital number, since it uses as much as digits as its factorization.

20130131401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20130131401 its reverse (10413103102), we get a palindrome (30543234503).

The spelling of 20130131401 in words is "twenty billion, one hundred thirty million, one hundred thirty-one thousand, four hundred one".