20103443534100 has 72 divisors (see below), whose sum is σ = 59119503727648. Its totient is φ = 5273034364800.

The previous prime is 20103443534071. The next prime is 20103443534107. The reversal of 20103443534100 is 143534430102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103443534107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 549256114 + ... + 549292713.

Almost surely, 2^{20103443534100} is an apocalyptic number.

20103443534100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103443534100 is an abundant number, since it is smaller than the sum of its proper divisors (39016060193548).

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

20103443534100 is a wasteful number, since it uses less digits than its factorization.

20103443534100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098548905 (or 1098548898 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20103443534100 its reverse (143534430102), we get a palindrome (20246977964202).

The spelling of 20103443534100 in words is "twenty trillion, one hundred three billion, four hundred forty-three million, five hundred thirty-four thousand, one hundred".