13120310452 has 12 divisors (see below), whose sum is σ = 23520556836. Its totient is φ = 6400151360.

The previous prime is 13120310449. The next prime is 13120310459. The reversal of 13120310452 is 25401302131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1496451856 + 11623858596 = 38684^2 + 107814^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120310459) 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, 40000783 + ... + 40001110.

It is an arithmetic number, because the mean of its divisors is an integer number (1960046403).

Almost surely, 2^13120310452 is an apocalyptic number.

It is an amenable number.

13120310452 is a deficient number, since it is larger than the sum of its proper divisors (10400246384).

13120310452 is a wasteful number, since it uses less digits than its factorization.

13120310452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80001938 (or 80001936 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13120310452 its reverse (25401302131), we get a palindrome (38521612583).

The spelling of 13120310452 in words is "thirteen billion, one hundred twenty million, three hundred ten thousand, four hundred fifty-two".