1023031020220 has 72 divisors (see below), whose sum is σ = 2368005948000. Its totient is φ = 370974721920.

The previous prime is 1023031020211. The next prime is 1023031020229. The reversal of 1023031020220 is 220201303201.

It is an interprime number because it is at equal distance from previous prime (1023031020211) and next prime (1023031020229).

It is a junction number, because it is equal to n+sod(n) for n = 1023031020194 and 1023031020203.

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 23 ways as a sum of consecutive naturals, for example, 280006 + ... + 1457554.

It is an arithmetic number, because the mean of its divisors is an integer number (32888971500).

Almost surely, 2^{1023031020220} is an apocalyptic number.

1023031020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023031020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1184002974000).

1023031020220 is an abundant number, since it is smaller than the sum of its proper divisors (1344974927780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023031020220 is a wasteful number, since it uses less digits than its factorization.

1023031020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177939 (or 1177926 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1023031020220 its reverse (220201303201), we get a palindrome (1243232323421).

The spelling of 1023031020220 in words is "one trillion, twenty-three billion, thirty-one million, twenty thousand, two hundred twenty".