1345101532321 has 4 divisors (see below), whose sum is σ = 1345276432944. Its totient is φ = 1344926631700.

The previous prime is 1345101532309. The next prime is 1345101532331. The reversal of 1345101532321 is 1232351015431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345101532321 - 2¹⁹ = 1345101008033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345101532301) 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, 87438775 + ... + 87454156.

It is an arithmetic number, because the mean of its divisors is an integer number (336319108236).

Almost surely, 2^{1345101532321} is an apocalyptic number.

It is an amenable number.

1345101532321 is a deficient number, since it is larger than the sum of its proper divisors (174900623).

1345101532321 is an equidigital number, since it uses as much as digits as its factorization.

1345101532321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174900622.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1345101532321 its reverse (1232351015431), we get a palindrome (2577452547752).

The spelling of 1345101532321 in words is "one trillion, three hundred forty-five billion, one hundred one million, five hundred thirty-two thousand, three hundred twenty-one".