100420343412 has 24 divisors (see below), whose sum is σ = 234327304512. Its totient is φ = 33471566400.

The previous prime is 100420343381. The next prime is 100420343431. The reversal of 100420343412 is 214343024001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3664 + ... + 448167.

It is an arithmetic number, because the mean of its divisors is an integer number (9763637688).

Almost surely, 2^100420343412 is an apocalyptic number.

100420343412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100420343412 is an abundant number, since it is smaller than the sum of its proper divisors (133906961100).

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

100420343412 is a wasteful number, since it uses less digits than its factorization.

100420343412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470359 (or 470357 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 100420343412 its reverse (214343024001), we get a palindrome (314763367413).

The spelling of 100420343412 in words is "one hundred billion, four hundred twenty million, three hundred forty-three thousand, four hundred twelve".