100140452281 has 2 divisors, whose sum is σ = 100140452282. Its totient is φ = 100140452280.

The previous prime is 100140452249. The next prime is 100140452311. The reversal of 100140452281 is 182254041001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98244633600 + 1895818681 = 313440^2 + 43541^2 .

It is an emirp because it is prime and its reverse (182254041001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100140452281 - 2⁵ = 100140452249 is a prime.

It is a super-2 number, since 2×100140452281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100140452201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50070226140 + 50070226141.

It is an arithmetic number, because the mean of its divisors is an integer number (50070226141).

Almost surely, 2^100140452281 is an apocalyptic number.

It is an amenable number.

100140452281 is a deficient number, since it is larger than the sum of its proper divisors (1).

100140452281 is an equidigital number, since it uses as much as digits as its factorization.

100140452281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 28.

Adding to 100140452281 its reverse (182254041001), we get a palindrome (282394493282).

The spelling of 100140452281 in words is "one hundred billion, one hundred forty million, four hundred fifty-two thousand, two hundred eighty-one".