31430131401 has 4 divisors (see below), whose sum is σ = 41906841872. Its totient is φ = 20953420932.

The previous prime is 31430131393. The next prime is 31430131457. The reversal of 31430131401 is 10413103413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31430131401 - 2³ = 31430131393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31430131501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5238355231 + ... + 5238355236.

It is an arithmetic number, because the mean of its divisors is an integer number (10476710468).

Almost surely, 2^31430131401 is an apocalyptic number.

It is an amenable number.

31430131401 is a deficient number, since it is larger than the sum of its proper divisors (10476710471).

31430131401 is a wasteful number, since it uses less digits than its factorization.

31430131401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476710470.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31430131401 its reverse (10413103413), we get a palindrome (41843234814).

The spelling of 31430131401 in words is "thirty-one billion, four hundred thirty million, one hundred thirty-one thousand, four hundred one".