10326226232581 has 6 divisors (see below), whose sum is σ = 12012140719590. Its totient is φ = 8851051056456.

The previous prime is 10326226232537. The next prime is 10326226232627. The reversal of 10326226232581 is 18523262262301.

It can be written as a sum of positive squares in only one way, i.e., 9733994404225 + 592231828356 = 3119935^2 + 769566^2 .

It is not a de Polignac number, because 10326226232581 - 2²¹ = 10326224135429 is a prime.

It is a super-2 number, since 2×10326226232581² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10326226230581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105369655386 + ... + 105369655483.

It is an arithmetic number, because the mean of its divisors is an integer number (2002023453265).

Almost surely, 2^{10326226232581} is an apocalyptic number.

It is an amenable number.

10326226232581 is a deficient number, since it is larger than the sum of its proper divisors (1685914487009).

10326226232581 is an equidigital number, since it uses as much as digits as its factorization.

10326226232581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210739310883 (or 210739310876 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

Adding to 10326226232581 its reverse (18523262262301), we get a palindrome (28849488494882).

The spelling of 10326226232581 in words is "ten trillion, three hundred twenty-six billion, two hundred twenty-six million, two hundred thirty-two thousand, five hundred eighty-one".