1345322520442 has 8 divisors (see below), whose sum is σ = 2029648427316. Its totient is φ = 668773044672.

The previous prime is 1345322520439. The next prime is 1345322520469. The reversal of 1345322520442 is 2440252235431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1344071554281 + 1250966161 = 1159341^2 + 35369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1944107343 + ... + 1944108034.

Almost surely, 2^{1345322520442} is an apocalyptic number.

1345322520442 is a deficient number, since it is larger than the sum of its proper divisors (684325906874).

1345322520442 is a wasteful number, since it uses less digits than its factorization.

1345322520442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888215552.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 1345322520442 its reverse (2440252235431), we get a palindrome (3785574755873).

The spelling of 1345322520442 in words is "one trillion, three hundred forty-five billion, three hundred twenty-two million, five hundred twenty thousand, four hundred forty-two".