31031003113313 has 32 divisors (see below), whose sum is σ = 35905681701120. Its totient is φ = 26268448677120.

The previous prime is 31031003113301. The next prime is 31031003113379. The reversal of 31031003113313 is 31331130013013.

It is a cyclic number.

It is not a de Polignac number, because 31031003113313 - 2¹⁰ = 31031003112289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31031003113013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345062231 + ... + 345152147.

It is an arithmetic number, because the mean of its divisors is an integer number (1122052553160).

Almost surely, 2^{31031003113313} is an apocalyptic number.

It is an amenable number.

31031003113313 is a deficient number, since it is larger than the sum of its proper divisors (4874678587807).

31031003113313 is a wasteful number, since it uses less digits than its factorization.

31031003113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91497.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 31031003113313 its reverse (31331130013013), we get a palindrome (62362133126326).

The spelling of 31031003113313 in words is "thirty-one trillion, thirty-one billion, three million, one hundred thirteen thousand, three hundred thirteen".