101024281 has 2 divisors, whose sum is σ = 101024282. Its totient is φ = 101024280.

The previous prime is 101024279. The next prime is 101024323. The reversal of 101024281 is 182420101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 47734281 = 7300^2 + 6909^2 .

It is a cyclic number.

It is not a de Polignac number, because 101024281 - 2¹ = 101024279 is a prime.

It is a super-2 number, since 2×101024281² = 20411810703133922, which contains 22 as substring.

Together with 101024279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101024981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50512140 + 50512141.

It is an arithmetic number, because the mean of its divisors is an integer number (50512141).

Almost surely, 2^101024281 is an apocalyptic number.

It is an amenable number.

101024281 is a deficient number, since it is larger than the sum of its proper divisors (1).

101024281 is an equidigital number, since it uses as much as digits as its factorization.

101024281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 101024281 is about 10051.0835734263. The cubic root of 101024281 is about 465.7382668819.

Adding to 101024281 its reverse (182420101), we get a palindrome (283444382).

The spelling of 101024281 in words is "one hundred one million, twenty-four thousand, two hundred eighty-one".