1021040004340 has 48 divisors (see below), whose sum is σ = 2247562215360. Its totient is φ = 389188235520.

The previous prime is 1021040004337. The next prime is 1021040004407. The reversal of 1021040004340 is 434000401201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14443470 + ... + 14513989.

It is an arithmetic number, because the mean of its divisors is an integer number (46824212820).

Almost surely, 2^{1021040004340} is an apocalyptic number.

1021040004340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021040004340 is an abundant number, since it is smaller than the sum of its proper divisors (1226522211020).

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

1021040004340 is a wasteful number, since it uses less digits than its factorization.

1021040004340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28957552 (or 28957550 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1021040004340 its reverse (434000401201), we get a palindrome (1455040405541).

The spelling of 1021040004340 in words is "one trillion, twenty-one billion, forty million, four thousand, three hundred forty".