31210042134005 has 16 divisors (see below), whose sum is σ = 43085802733824. Its totient is φ = 21259442131200.

The previous prime is 31210042134001. The next prime is 31210042134043. The reversal of 31210042134005 is 50043124001213.

It is a happy number.

It is not a de Polignac number, because 31210042134005 - 2² = 31210042134001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31210042134001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2952695012 + ... + 2952705581.

It is an arithmetic number, because the mean of its divisors is an integer number (2692862670864).

Almost surely, 2^{31210042134005} is an apocalyptic number.

31210042134005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31210042134005 is a deficient number, since it is larger than the sum of its proper divisors (11875760599819).

31210042134005 is a wasteful number, since it uses less digits than its factorization.

31210042134005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905400756.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31210042134005 its reverse (50043124001213), we get a palindrome (81253166135218).

The spelling of 31210042134005 in words is "thirty-one trillion, two hundred ten billion, forty-two million, one hundred thirty-four thousand, five".