1021033444432 has 80 divisors (see below), whose sum is σ = 2099351168640. Its totient is φ = 480233166336.

The previous prime is 1021033444429. The next prime is 1021033444439. The reversal of 1021033444432 is 2344443301201.

It is a junction number, because it is equal to n+sod(n) for n = 1021033444394 and 1021033444403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021033444439) 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, 7856493 + ... + 7985395.

It is an arithmetic number, because the mean of its divisors is an integer number (26241889608).

Almost surely, 2^{1021033444432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021033444432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1049675584320).

1021033444432 is an abundant number, since it is smaller than the sum of its proper divisors (1078317724208).

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

1021033444432 is a wasteful number, since it uses less digits than its factorization.

1021033444432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129380 (or 129374 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1021033444432 its reverse (2344443301201), we get a palindrome (3365476745633).

The spelling of 1021033444432 in words is "one trillion, twenty-one billion, thirty-three million, four hundred forty-four thousand, four hundred thirty-two".