20103520354000 has 80 divisors (see below), whose sum is σ = 49294964848896. Its totient is φ = 7928148816000.

The previous prime is 20103520353979. The next prime is 20103520354007. The reversal of 20103520354000 is 45302530102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103520354007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70645044 + ... + 70929043.

Almost surely, 2^{20103520354000} is an apocalyptic number.

20103520354000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103520354000 is an abundant number, since it is smaller than the sum of its proper divisors (29191444494896).

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

20103520354000 is a wasteful number, since it uses less digits than its factorization.

20103520354000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141574181 (or 141574165 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20103520354000 its reverse (45302530102), we get a palindrome (20148822884102).

The spelling of 20103520354000 in words is "twenty trillion, one hundred three billion, five hundred twenty million, three hundred fifty-four thousand".