1345440231052 has 12 divisors (see below), whose sum is σ = 2364892742520. Its totient is φ = 669756590336.

The previous prime is 1345440231049. The next prime is 1345440231133. The reversal of 1345440231052 is 2501320445431.

It is a junction number, because it is equal to n+sod(n) for n = 1345440230999 and 1345440231017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740880277 + ... + 740882092.

It is an arithmetic number, because the mean of its divisors is an integer number (197074395210).

Almost surely, 2^{1345440231052} is an apocalyptic number.

It is an amenable number.

1345440231052 is a deficient number, since it is larger than the sum of its proper divisors (1019452511468).

1345440231052 is a wasteful number, since it uses less digits than its factorization.

1345440231052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481762600 (or 1481762598 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1345440231052 its reverse (2501320445431), we get a palindrome (3846760676483).

The spelling of 1345440231052 in words is "one trillion, three hundred forty-five billion, four hundred forty million, two hundred thirty-one thousand, fifty-two".