1345020521302 has 4 divisors (see below), whose sum is σ = 2017530781956. Its totient is φ = 672510260650.

The previous prime is 1345020521293. The next prime is 1345020521309. The reversal of 1345020521302 is 2031250205431.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345020521309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336255130324 + ... + 336255130327.

It is an arithmetic number, because the mean of its divisors is an integer number (504382695489).

Almost surely, 2^{1345020521302} is an apocalyptic number.

1345020521302 is a deficient number, since it is larger than the sum of its proper divisors (672510260654).

1345020521302 is an equidigital number, since it uses as much as digits as its factorization.

1345020521302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672510260653.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 1345020521302 its reverse (2031250205431), we get a palindrome (3376270726733).

The spelling of 1345020521302 in words is "one trillion, three hundred forty-five billion, twenty million, five hundred twenty-one thousand, three hundred two".