31045232605 has 8 divisors (see below), whose sum is σ = 37328940000. Its totient is φ = 24786412176.

The previous prime is 31045232599. The next prime is 31045232623. The reversal of 31045232605 is 50623254013.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31045232605 - 2⁵ = 31045232573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6218995 + ... + 6223984.

It is an arithmetic number, because the mean of its divisors is an integer number (4666117500).

Almost surely, 2^31045232605 is an apocalyptic number.

It is an amenable number.

31045232605 is a deficient number, since it is larger than the sum of its proper divisors (6283707395).

31045232605 is a wasteful number, since it uses less digits than its factorization.

31045232605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443483.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 31045232605 its reverse (50623254013), we get a palindrome (81668486618).

The spelling of 31045232605 in words is "thirty-one billion, forty-five million, two hundred thirty-two thousand, six hundred five".