1021433502342 has 128 divisors (see below), whose sum is σ = 2376870013440. Its totient is φ = 289382768640.

The previous prime is 1021433502319. The next prime is 1021433502359. The reversal of 1021433502342 is 2432053341201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33001098 + ... + 33032034.

It is an arithmetic number, because the mean of its divisors is an integer number (18569296980).

Almost surely, 2^{1021433502342} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021433502342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188435006720).

1021433502342 is an abundant number, since it is smaller than the sum of its proper divisors (1355436511098).

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

1021433502342 is a wasteful number, since it uses less digits than its factorization.

1021433502342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31318.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 1021433502342 its reverse (2432053341201), we get a palindrome (3453486843543).

The spelling of 1021433502342 in words is "one trillion, twenty-one billion, four hundred thirty-three million, five hundred two thousand, three hundred forty-two".