31134404031 has 8 divisors (see below), whose sum is σ = 42944005680. Its totient is φ = 20040535872.

The previous prime is 31134404029. The next prime is 31134404039. The reversal of 31134404031 is 13040443113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31134404031 - 2¹ = 31134404029 is a prime.

It is a super-2 number, since 2×31134404031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31134403992 and 31134404010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134404039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178933270 + ... + 178933443.

It is an arithmetic number, because the mean of its divisors is an integer number (5368000710).

Almost surely, 2^31134404031 is an apocalyptic number.

31134404031 is a deficient number, since it is larger than the sum of its proper divisors (11809601649).

31134404031 is a wasteful number, since it uses less digits than its factorization.

31134404031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357866745.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31134404031 its reverse (13040443113), we get a palindrome (44174847144).

The spelling of 31134404031 in words is "thirty-one billion, one hundred thirty-four million, four hundred four thousand, thirty-one".