100203401142443 has 24 divisors (see below), whose sum is σ = 105039132276000. Its totient is φ = 95467628067840.

The previous prime is 100203401142421. The next prime is 100203401142451. The reversal of 100203401142443 is 344241104302001.

It is not a de Polignac number, because 100203401142443 - 2⁶ = 100203401142379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (100203401142413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235644083 + ... + 236068931.

It is an arithmetic number, because the mean of its divisors is an integer number (4376630511500).

Almost surely, 2^{100203401142443} is an apocalyptic number.

100203401142443 is a deficient number, since it is larger than the sum of its proper divisors (4835731133557).

100203401142443 is an equidigital number, since it uses as much as digits as its factorization.

100203401142443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425543 (or 425262 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 100203401142443 its reverse (344241104302001), we get a palindrome (444444505444444).

The spelling of 100203401142443 in words is "one hundred trillion, two hundred three billion, four hundred one million, one hundred forty-two thousand, four hundred forty-three".