100243243434 has 32 divisors (see below), whose sum is σ = 207499991040. Its totient is φ = 32251186800.

The previous prime is 100243243423. The next prime is 100243243517. The reversal of 100243243434 is 434342342001.

It is a happy number.

It is a super-2 number, since 2×100243243434² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640512 + ... + 781499.

It is an arithmetic number, because the mean of its divisors is an integer number (6484374720).

Almost surely, 2^100243243434 is an apocalyptic number.

100243243434 is an abundant number, since it is smaller than the sum of its proper divisors (107256747606).

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

100243243434 is a wasteful number, since it uses less digits than its factorization.

100243243434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422426.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 100243243434 its reverse (434342342001), we get a palindrome (534585585435).

The spelling of 100243243434 in words is "one hundred billion, two hundred forty-three million, two hundred forty-three thousand, four hundred thirty-four".