145301213321 has 4 divisors (see below), whose sum is σ = 158510414544. Its totient is φ = 132092012100.

The previous prime is 145301213297. The next prime is 145301213327. The reversal of 145301213321 is 123312103541.

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 145301213321 - 2¹⁰ = 145301212297 is a prime.

It is a super-2 number, since 2×145301213321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145301213327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6604600595 + ... + 6604600616.

It is an arithmetic number, because the mean of its divisors is an integer number (39627603636).

Almost surely, 2^145301213321 is an apocalyptic number.

145301213321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145301213321 is a deficient number, since it is larger than the sum of its proper divisors (13209201223).

145301213321 is a wasteful number, since it uses less digits than its factorization.

145301213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13209201222.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 145301213321 its reverse (123312103541), we get a palindrome (268613316862).

The spelling of 145301213321 in words is "one hundred forty-five billion, three hundred one million, two hundred thirteen thousand, three hundred twenty-one".