140030232281 has 2 divisors, whose sum is σ = 140030232282. Its totient is φ = 140030232280.

The previous prime is 140030232137. The next prime is 140030232299. The reversal of 140030232281 is 182232030041.

140030232281 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., 138911998681 + 1118233600 = 372709^2 + 33440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140030232281 is a prime.

It is a super-2 number, since 2×140030232281² (a number of 23 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 140030232281.

It is not a weakly prime, because it can be changed into another prime (140030238281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70015116140 + 70015116141.

It is an arithmetic number, because the mean of its divisors is an integer number (70015116141).

Almost surely, 2^140030232281 is an apocalyptic number.

It is an amenable number.

140030232281 is a deficient number, since it is larger than the sum of its proper divisors (1).

140030232281 is an equidigital number, since it uses as much as digits as its factorization.

140030232281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 140030232281 in words is "one hundred forty billion, thirty million, two hundred thirty-two thousand, two hundred eighty-one".