100003433242421 has 16 divisors (see below), whose sum is σ = 106230451929264. Its totient is φ = 93814723252224.

The previous prime is 100003433242399. The next prime is 100003433242469. The reversal of 100003433242421 is 124242334300001.

It can be written as a sum of positive squares in 8 ways, for example, as 24309692196196 + 75693741046225 = 4930486^2 + 8700215^2 .

It is a cyclic number.

It is not a de Polignac number, because 100003433242421 - 2³⁸ = 99728555335477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100003433212421) 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, 92564471 + ... + 93638603.

It is an arithmetic number, because the mean of its divisors is an integer number (6639403245579).

Almost surely, 2^{100003433242421} is an apocalyptic number.

It is an amenable number.

100003433242421 is a deficient number, since it is larger than the sum of its proper divisors (6227018686843).

100003433242421 is a wasteful number, since it uses less digits than its factorization.

100003433242421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091960.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 100003433242421 its reverse (124242334300001), we get a palindrome (224245767542422).

The spelling of 100003433242421 in words is "one hundred trillion, three billion, four hundred thirty-three million, two hundred forty-two thousand, four hundred twenty-one".