20014021321040 has 40 divisors (see below), whose sum is σ = 47187988311168. Its totient is φ = 7892853476480.

The previous prime is 20014021321033. The next prime is 20014021321057. The reversal of 20014021321040 is 4012312041002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×20014021321040² (a number of 27 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761791972 + ... + 1761803331.

Almost surely, 2^{20014021321040} is an apocalyptic number.

20014021321040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20014021321040 is an abundant number, since it is smaller than the sum of its proper divisors (27173966990128).

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

20014021321040 is a wasteful number, since it uses less digits than its factorization.

20014021321040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523595387 (or 3523595381 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20014021321040 its reverse (4012312041002), we get a palindrome (24026333362042).

The spelling of 20014021321040 in words is "twenty trillion, fourteen billion, twenty-one million, three hundred twenty-one thousand, forty".