13012423432 has 8 divisors (see below), whose sum is σ = 24398293950. Its totient is φ = 6506211712.

The previous prime is 13012423427. The next prime is 13012423433. The reversal of 13012423432 is 23432421031.

It can be written as a sum of positive squares in only one way, i.e., 10827234916 + 2185188516 = 104054^2 + 46746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 13012423397 and 13012423406.

It is not an unprimeable number, because it can be changed into a prime (13012423433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 813276457 + ... + 813276472.

Almost surely, 2^13012423432 is an apocalyptic number.

It is an amenable number.

13012423432 is a deficient number, since it is larger than the sum of its proper divisors (11385870518).

13012423432 is a wasteful number, since it uses less digits than its factorization.

13012423432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626552935 (or 1626552931 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13012423432 its reverse (23432421031), we get a palindrome (36444844463).

The spelling of 13012423432 in words is "thirteen billion, twelve million, four hundred twenty-three thousand, four hundred thirty-two".