3107431478981 has 2 divisors, whose sum is σ = 3107431478982. Its totient is φ = 3107431478980.

The previous prime is 3107431478911. The next prime is 3107431479029. The reversal of 3107431478981 is 1898741347013.

3107431478981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1663971002500 + 1443460476481 = 1289950^2 + 1201441^2 .

It is a cyclic number.

It is not a de Polignac number, because 3107431478981 - 2¹⁰ = 3107431477957 is a prime.

It is a super-2 number, since 2×3107431478981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3107431478911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1553715739490 + 1553715739491.

It is an arithmetic number, because the mean of its divisors is an integer number (1553715739491).

Almost surely, 2^{3107431478981} is an apocalyptic number.

It is an amenable number.

3107431478981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3107431478981 is an equidigital number, since it uses as much as digits as its factorization.

3107431478981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 3107431478981 in words is "three trillion, one hundred seven billion, four hundred thirty-one million, four hundred seventy-eight thousand, nine hundred eighty-one".