1021331200340 has 48 divisors (see below), whose sum is σ = 2394190370880. Its totient is φ = 362756110080.

The previous prime is 1021331200333. The next prime is 1021331200367. The reversal of 1021331200340 is 430021331201.

1021331200340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1021331200340² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53972105 + ... + 53991024.

It is an arithmetic number, because the mean of its divisors is an integer number (49878966060).

Almost surely, 2^{1021331200340} is an apocalyptic number.

1021331200340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021331200340 is an abundant number, since it is smaller than the sum of its proper divisors (1372859170540).

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

1021331200340 is a wasteful number, since it uses less digits than its factorization.

1021331200340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107963192 (or 107963190 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1021331200340 its reverse (430021331201), we get a palindrome (1451352531541).

The spelling of 1021331200340 in words is "one trillion, twenty-one billion, three hundred thirty-one million, two hundred thousand, three hundred forty".