1020203213232 has 160 divisors (see below), whose sum is σ = 3109830672384. Its totient is φ = 282025785600.

The previous prime is 1020203213231. The next prime is 1020203213279. The reversal of 1020203213232 is 2323123020201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1020203213199 and 1020203213208.

It is not an unprimeable number, because it can be changed into a prime (1020203213231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85103143 + ... + 85115129.

Almost surely, 2^{1020203213232} is an apocalyptic number.

1020203213232 is a gapful number since it is divisible by the number (12) 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 1020203213232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554915336192).

1020203213232 is an abundant number, since it is smaller than the sum of its proper divisors (2089627459152).

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

1020203213232 is a wasteful number, since it uses less digits than its factorization.

1020203213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20207 (or 20201 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1020203213232 its reverse (2323123020201), we get a palindrome (3343326233433).

The spelling of 1020203213232 in words is "one trillion, twenty billion, two hundred three million, two hundred thirteen thousand, two hundred thirty-two".