1023232243220 has 72 divisors (see below), whose sum is σ = 2406454899912. Its totient is φ = 365063944960.

The previous prime is 1023232243217. The next prime is 1023232243247. The reversal of 1023232243220 is 223422323201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45831102724 + 977401140496 = 214082^2 + 988636^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1023232243220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3860639 + ... + 4117158.

It is an arithmetic number, because the mean of its divisors is an integer number (33422984721).

Almost surely, 2^{1023232243220} is an apocalyptic number.

1023232243220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023232243220 is an abundant number, since it is smaller than the sum of its proper divisors (1383222656692).

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

1023232243220 is a wasteful number, since it uses less digits than its factorization.

1023232243220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7977881 (or 7977868 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 1023232243220 its reverse (223422323201), we get a palindrome (1246654566421).

The spelling of 1023232243220 in words is "one trillion, twenty-three billion, two hundred thirty-two million, two hundred forty-three thousand, two hundred twenty".