10123132681 has 4 divisors (see below), whose sum is σ = 10718611092. Its totient is φ = 9527654272.

The previous prime is 10123132673. The next prime is 10123132699. The reversal of 10123132681 is 18623132101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6497166025 + 3625966656 = 80605^2 + 60216^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123132681 - 2³ = 10123132673 is a prime.

It is a super-2 number, since 2×10123132681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10123132081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297739180 + ... + 297739213.

It is an arithmetic number, because the mean of its divisors is an integer number (2679652773).

Almost surely, 2^10123132681 is an apocalyptic number.

It is an amenable number.

10123132681 is a deficient number, since it is larger than the sum of its proper divisors (595478411).

10123132681 is an equidigital number, since it uses as much as digits as its factorization.

10123132681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595478410.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 10123132681 its reverse (18623132101), we get a palindrome (28746264782).

The spelling of 10123132681 in words is "ten billion, one hundred twenty-three million, one hundred thirty-two thousand, six hundred eighty-one".