31231131031334 has 32 divisors (see below), whose sum is σ = 51259499223744. Its totient is φ = 14184077184000.

The previous prime is 31231131031333. The next prime is 31231131031343. The reversal of 31231131031334 is 43313013113213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31231131031297 and 31231131031306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231131031333) 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, 18179042 + ... + 19822709.

It is an arithmetic number, because the mean of its divisors is an integer number (1601859350742).

Almost surely, 2^{31231131031334} is an apocalyptic number.

31231131031334 is a deficient number, since it is larger than the sum of its proper divisors (20028368192410).

31231131031334 is a wasteful number, since it uses less digits than its factorization.

31231131031334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38002272.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 31231131031334 its reverse (43313013113213), we get a palindrome (74544144144547).

The spelling of 31231131031334 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred thirty-one million, thirty-one thousand, three hundred thirty-four".