10030312261 has 2 divisors, whose sum is σ = 10030312262. Its totient is φ = 10030312260.

The previous prime is 10030312219. The next prime is 10030312297. The reversal of 10030312261 is 16221303001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10022012100 + 8300161 = 100110^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 10030312261 - 2¹⁹ = 10029787973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10030312661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015156130 + 5015156131.

It is an arithmetic number, because the mean of its divisors is an integer number (5015156131).

Almost surely, 2^10030312261 is an apocalyptic number.

It is an amenable number.

10030312261 is a deficient number, since it is larger than the sum of its proper divisors (1).

10030312261 is an equidigital number, since it uses as much as digits as its factorization.

10030312261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10030312261 its reverse (16221303001), we get a palindrome (26251615262).

The spelling of 10030312261 in words is "ten billion, thirty million, three hundred twelve thousand, two hundred sixty-one".