2131010281 has 2 divisors, whose sum is σ = 2131010282. Its totient is φ = 2131010280.

The previous prime is 2131010249. The next prime is 2131010291. The reversal of 2131010281 is 1820101312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1306171881 + 824838400 = 36141^2 + 28720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131010281 - 2⁵ = 2131010249 is a prime.

It is a super-2 number, since 2×2131010281² = 9082409635455397922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2131010291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065505140 + 1065505141.

It is an arithmetic number, because the mean of its divisors is an integer number (1065505141).

Almost surely, 2^2131010281 is an apocalyptic number.

It is an amenable number.

2131010281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131010281 is an equidigital number, since it uses as much as digits as its factorization.

2131010281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 2131010281 is about 46162.8669062050. The cubic root of 2131010281 is about 1286.8517426044.

Adding to 2131010281 its reverse (1820101312), we get a palindrome (3951111593).

The spelling of 2131010281 in words is "two billion, one hundred thirty-one million, ten thousand, two hundred eighty-one".