31234332155045 has 16 divisors (see below), whose sum is σ = 38134772723520. Its totient is φ = 24552156290304.

The previous prime is 31234332155041. The next prime is 31234332155141. The reversal of 31234332155045 is 54055123343213.

It is a cyclic number.

It is not a de Polignac number, because 31234332155045 - 2² = 31234332155041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31234332154993 and 31234332155011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234332155041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24800564 + ... + 26029533.

It is an arithmetic number, because the mean of its divisors is an integer number (2383423295220).

Almost surely, 2^{31234332155045} is an apocalyptic number.

It is an amenable number.

31234332155045 is a deficient number, since it is larger than the sum of its proper divisors (6900440568475).

31234332155045 is a wasteful number, since it uses less digits than its factorization.

31234332155045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50832244.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 31234332155045 its reverse (54055123343213), we get a palindrome (85289455498258).

The spelling of 31234332155045 in words is "thirty-one trillion, two hundred thirty-four billion, three hundred thirty-two million, one hundred fifty-five thousand, forty-five".