31040334434 has 16 divisors (see below), whose sum is σ = 48589314048. Its totient is φ = 14844019872.

The previous prime is 31040334431. The next prime is 31040334443. The reversal of 31040334434 is 43443304013.

It is a super-2 number, since 2×31040334434² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31040334397 and 31040334406.

It is not an unprimeable number, because it can be changed into a prime (31040334431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 629774 + ... + 677270.

It is an arithmetic number, because the mean of its divisors is an integer number (3036832128).

Almost surely, 2^31040334434 is an apocalyptic number.

31040334434 is a deficient number, since it is larger than the sum of its proper divisors (17548979614).

31040334434 is a wasteful number, since it uses less digits than its factorization.

31040334434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61729.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 31040334434 its reverse (43443304013), we get a palindrome (74483638447).

The spelling of 31040334434 in words is "thirty-one billion, forty million, three hundred thirty-four thousand, four hundred thirty-four".