31245131610663 has 16 divisors (see below), whose sum is σ = 41909568355200. Its totient is φ = 20705496942240.

The previous prime is 31245131610569. The next prime is 31245131610677. The reversal of 31245131610663 is 36601613154213.

It is not a de Polignac number, because 31245131610663 - 2¹⁴ = 31245131594279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31245131614663) 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, 12020493 + ... + 14386886.

It is an arithmetic number, because the mean of its divisors is an integer number (2619348022200).

Almost surely, 2^{31245131610663} is an apocalyptic number.

31245131610663 is a deficient number, since it is larger than the sum of its proper divisors (10664436744537).

31245131610663 is a wasteful number, since it uses less digits than its factorization.

31245131610663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26409742.

The product of its (nonzero) digits is 233280, while the sum is 42.

Adding to 31245131610663 its reverse (36601613154213), we get a palindrome (67846744764876).

The spelling of 31245131610663 in words is "thirty-one trillion, two hundred forty-five billion, one hundred thirty-one million, six hundred ten thousand, six hundred sixty-three".