31450434405 has 24 divisors (see below), whose sum is σ = 54489277728. Its totient is φ = 15483289536.

The previous prime is 31450434403. The next prime is 31450434443. The reversal of 31450434405 is 50443405413.

It is a happy number.

It is not a de Polignac number, because 31450434405 - 2¹ = 31450434403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31450434403) 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 23 ways as a sum of consecutive naturals, for example, 6200707 + ... + 6205776.

It is an arithmetic number, because the mean of its divisors is an integer number (2270386572).

Almost surely, 2^31450434405 is an apocalyptic number.

It is an amenable number.

31450434405 is a deficient number, since it is larger than the sum of its proper divisors (23038843323).

31450434405 is a wasteful number, since it uses less digits than its factorization.

31450434405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406517 (or 12406504 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 31450434405 its reverse (50443405413), we get a palindrome (81893839818).

The spelling of 31450434405 in words is "thirty-one billion, four hundred fifty million, four hundred thirty-four thousand, four hundred five".