310001310981 has 12 divisors (see below), whose sum is σ = 448205736160. Its totient is φ = 206470895400.

The previous prime is 310001310979. The next prime is 310001311027. The reversal of 310001310981 is 189013100013.

It is a happy number.

It is not a de Polignac number, because 310001310981 - 2¹ = 310001310979 is a prime.

It is a super-2 number, since 2×310001310981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310001310901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16377121 + ... + 16396038.

Almost surely, 2^310001310981 is an apocalyptic number.

It is an amenable number.

310001310981 is a deficient number, since it is larger than the sum of its proper divisors (138204425179).

310001310981 is a wasteful number, since it uses less digits than its factorization.

310001310981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32774216 (or 32774213 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

Adding to 310001310981 its reverse (189013100013), we get a palindrome (499014410994).

The spelling of 310001310981 in words is "three hundred ten billion, one million, three hundred ten thousand, nine hundred eighty-one".