3031420981 has 2 divisors, whose sum is σ = 3031420982. Its totient is φ = 3031420980.

The previous prime is 3031420967. The next prime is 3031421017. The reversal of 3031420981 is 1890241303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2717953956 + 313467025 = 52134^2 + 17705^2 .

It is a cyclic number.

It is not a de Polignac number, because 3031420981 - 2¹⁷ = 3031289909 is a prime.

It is a super-3 number, since 3×3031420981³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3031420081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515710490 + 1515710491.

It is an arithmetic number, because the mean of its divisors is an integer number (1515710491).

Almost surely, 2^3031420981 is an apocalyptic number.

It is an amenable number.

3031420981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3031420981 is an equidigital number, since it uses as much as digits as its factorization.

3031420981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3031420981 is about 55058.3416114216. The cubic root of 3031420981 is about 1447.2673035620.

The spelling of 3031420981 in words is "three billion, thirty-one million, four hundred twenty thousand, nine hundred eighty-one".