20130131404 has 12 divisors (see below), whose sum is σ = 35327527704. Its totient is φ = 10036552064.

The previous prime is 20130131401. The next prime is 20130131423. The reversal of 20130131404 is 40413103102.

It is a super-2 number, since 2×20130131404² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20130131401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7126822 + ... + 7129645.

It is an arithmetic number, because the mean of its divisors is an integer number (2943960642).

Almost surely, 2^20130131404 is an apocalyptic number.

It is an amenable number.

20130131404 is a deficient number, since it is larger than the sum of its proper divisors (15197396300).

20130131404 is a wasteful number, since it uses less digits than its factorization.

20130131404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14256824 (or 14256822 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20130131404 its reverse (40413103102), we get a palindrome (60543234506).

The spelling of 20130131404 in words is "twenty billion, one hundred thirty million, one hundred thirty-one thousand, four hundred four".