12540110032 has 10 divisors (see below), whose sum is σ = 24296463218. Its totient is φ = 6270055008.

The previous prime is 12540109949. The next prime is 12540110039. The reversal of 12540110032 is 23001104521.

It can be written as a sum of positive squares in only one way, i.e., 12520714816 + 19395216 = 111896^2 + 4404^2 .

It is a super-2 number, since 2×12540110032² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12540109991 and 12540110009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540110039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391878423 + ... + 391878454.

Almost surely, 2^12540110032 is an apocalyptic number.

It is an amenable number.

12540110032 is a deficient number, since it is larger than the sum of its proper divisors (11756353186).

12540110032 is an equidigital number, since it uses as much as digits as its factorization.

12540110032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783756885 (or 783756879 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 12540110032 its reverse (23001104521), we get a palindrome (35541214553).

The spelling of 12540110032 in words is "twelve billion, five hundred forty million, one hundred ten thousand, thirty-two".