20001004331340 has 48 divisors (see below), whose sum is σ = 56003192108640. Its totient is φ = 5333564966400.

The previous prime is 20001004331323. The next prime is 20001004331353. The reversal of 20001004331340 is 4313340010002.

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, 8457690 + ... + 10560990.

It is an arithmetic number, because the mean of its divisors is an integer number (1166733168930).

Almost surely, 2^{20001004331340} is an apocalyptic number.

20001004331340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001004331340 is an abundant number, since it is smaller than the sum of its proper divisors (36002187777300).

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

20001004331340 is a wasteful number, since it uses less digits than its factorization.

20001004331340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261802 (or 2261800 counting only the distinct ones).

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

Adding to 20001004331340 its reverse (4313340010002), we get a palindrome (24314344341342).

The spelling of 20001004331340 in words is "twenty trillion, one billion, four million, three hundred thirty-one thousand, three hundred forty".