1002021320145 has 16 divisors (see below), whose sum is σ = 1618217611200. Its totient is φ = 529416871104.

The previous prime is 1002021320129. The next prime is 1002021320177. The reversal of 1002021320145 is 5410231202001.

It is not a de Polignac number, because 1002021320145 - 2⁴ = 1002021320129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312154570 + ... + 312157779.

It is an arithmetic number, because the mean of its divisors is an integer number (101138600700).

Almost surely, 2^{1002021320145} is an apocalyptic number.

1002021320145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1002021320145 is a deficient number, since it is larger than the sum of its proper divisors (616196291055).

1002021320145 is a wasteful number, since it uses less digits than its factorization.

1002021320145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624312464.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 1002021320145 its reverse (5410231202001), we get a palindrome (6412252522146).

The spelling of 1002021320145 in words is "one trillion, two billion, twenty-one million, three hundred twenty thousand, one hundred forty-five".