241503031981 has 2 divisors, whose sum is σ = 241503031982. Its totient is φ = 241503031980.

The previous prime is 241503031921. The next prime is 241503032009. The reversal of 241503031981 is 189130305142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232203515625 + 9299516356 = 481875^2 + 96434^2 .

It is a cyclic number.

It is not a de Polignac number, because 241503031981 - 2¹⁷ = 241502900909 is a prime.

It is a super-2 number, since 2×241503031981² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 241503031981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241503031901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120751515990 + 120751515991.

It is an arithmetic number, because the mean of its divisors is an integer number (120751515991).

Almost surely, 2^241503031981 is an apocalyptic number.

It is an amenable number.

241503031981 is a deficient number, since it is larger than the sum of its proper divisors (1).

241503031981 is an equidigital number, since it uses as much as digits as its factorization.

241503031981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 241503031981 in words is "two hundred forty-one billion, five hundred three million, thirty-one thousand, nine hundred eighty-one".