10266121631 has 2 divisors, whose sum is σ = 10266121632. Its totient is φ = 10266121630.

The previous prime is 10266121589. The next prime is 10266121751. The reversal of 10266121631 is 13612166201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10266121631 is a prime.

It is a super-2 number, since 2×10266121631² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10266121594 and 10266121603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10266123631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5133060815 + 5133060816.

It is an arithmetic number, because the mean of its divisors is an integer number (5133060816).

Almost surely, 2^10266121631 is an apocalyptic number.

10266121631 is a deficient number, since it is larger than the sum of its proper divisors (1).

10266121631 is an equidigital number, since it uses as much as digits as its factorization.

10266121631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 10266121631 its reverse (13612166201), we get a palindrome (23878287832).

The spelling of 10266121631 in words is "ten billion, two hundred sixty-six million, one hundred twenty-one thousand, six hundred thirty-one".