1020313020221 has 16 divisors (see below), whose sum is σ = 1123577630208. Its totient is φ = 918801534000.

The previous prime is 1020313020217. The next prime is 1020313020227. The reversal of 1020313020221 is 1220203130201.

It is a cyclic number.

It is not a de Polignac number, because 1020313020221 - 2² = 1020313020217 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020313020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020313020227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14620016 + ... + 14689638.

It is an arithmetic number, because the mean of its divisors is an integer number (70223601888).

Almost surely, 2^{1020313020221} is an apocalyptic number.

1020313020221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020313020221 is a deficient number, since it is larger than the sum of its proper divisors (103264609987).

1020313020221 is a wasteful number, since it uses less digits than its factorization.

1020313020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82192.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1020313020221 its reverse (1220203130201), we get a palindrome (2240516150422).

The spelling of 1020313020221 in words is "one trillion, twenty billion, three hundred thirteen million, twenty thousand, two hundred twenty-one".