31152320420005 has 16 divisors (see below), whose sum is σ = 37490263202880. Its totient is φ = 24850234902528.

The previous prime is 31152320420003. The next prime is 31152320420017. The reversal of 31152320420005 is 50002402325113.

It is a cyclic number.

It is not a de Polignac number, because 31152320420005 - 2¹ = 31152320420003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31152320420003) 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, 6103269 + ... + 9977701.

It is an arithmetic number, because the mean of its divisors is an integer number (2343141450180).

Almost surely, 2^{31152320420005} is an apocalyptic number.

It is an amenable number.

31152320420005 is a deficient number, since it is larger than the sum of its proper divisors (6337942782875).

31152320420005 is a wasteful number, since it uses less digits than its factorization.

31152320420005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879060.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 31152320420005 its reverse (50002402325113), we get a palindrome (81154722745118).

The spelling of 31152320420005 in words is "thirty-one trillion, one hundred fifty-two billion, three hundred twenty million, four hundred twenty thousand, five".