10210451261 has 2 divisors, whose sum is σ = 10210451262. Its totient is φ = 10210451260.

The previous prime is 10210451257. The next prime is 10210451269. The reversal of 10210451261 is 16215401201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9617528761 + 592922500 = 98069^2 + 24350^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210451261 - 2² = 10210451257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10210451269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105225630 + 5105225631.

It is an arithmetic number, because the mean of its divisors is an integer number (5105225631).

Almost surely, 2^10210451261 is an apocalyptic number.

It is an amenable number.

10210451261 is a deficient number, since it is larger than the sum of its proper divisors (1).

10210451261 is an equidigital number, since it uses as much as digits as its factorization.

10210451261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 10210451261 its reverse (16215401201), we get a palindrome (26425852462).

The spelling of 10210451261 in words is "ten billion, two hundred ten million, four hundred fifty-one thousand, two hundred sixty-one".