31231321041 has 16 divisors (see below), whose sum is σ = 44030013440. Its totient is φ = 19636583760.

The previous prime is 31231321019. The next prime is 31231321049. The reversal of 31231321041 is 14012313213.

It is not a de Polignac number, because 31231321041 - 2²⁵ = 31197766609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31231320999 and 31231321017.

It is not an unprimeable number, because it can be changed into a prime (31231321049) 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, 1215805 + ... + 1241226.

It is an arithmetic number, because the mean of its divisors is an integer number (2751875840).

Almost surely, 2^31231321041 is an apocalyptic number.

It is an amenable number.

31231321041 is a deficient number, since it is larger than the sum of its proper divisors (12798692399).

31231321041 is a wasteful number, since it uses less digits than its factorization.

31231321041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457276.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31231321041 its reverse (14012313213), we get a palindrome (45243634254).

The spelling of 31231321041 in words is "thirty-one billion, two hundred thirty-one million, three hundred twenty-one thousand, forty-one".