1023031020221 has 16 divisors (see below), whose sum is σ = 1204638839040. Its totient is φ = 850440746880.

The previous prime is 1023031020211. The next prime is 1023031020229. The reversal of 1023031020221 is 1220201303201.

It is a cyclic number.

It is not a de Polignac number, because 1023031020221 - 2¹⁴ = 1023031003837 is a prime.

It is a super-2 number, since 2×1023031020221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023031020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023031020229) 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, 6269816 + ... + 6430913.

It is an arithmetic number, because the mean of its divisors is an integer number (75289927440).

Almost surely, 2^{1023031020221} is an apocalyptic number.

It is an amenable number.

1023031020221 is a deficient number, since it is larger than the sum of its proper divisors (181607818819).

1023031020221 is a wasteful number, since it uses less digits than its factorization.

1023031020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12701084.

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

Adding to 1023031020221 its reverse (1220201303201), we get a palindrome (2243232323422).

The spelling of 1023031020221 in words is "one trillion, twenty-three billion, thirty-one million, twenty thousand, two hundred twenty-one".