100312434420 has 192 divisors, whose sum is σ = 311330138112. Its totient is φ = 23930560000.

The previous prime is 100312434403. The next prime is 100312434433. The reversal of 100312434420 is 24434213001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11127715 + ... + 11136725.

It is an arithmetic number, because the mean of its divisors is an integer number (1621511136).

Almost surely, 2^100312434420 is an apocalyptic number.

100312434420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100312434420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155665069056).

100312434420 is an abundant number, since it is smaller than the sum of its proper divisors (211017703692).

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

100312434420 is a wasteful number, since it uses less digits than its factorization.

100312434420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302 (or 9300 counting only the distinct ones).

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

Adding to 100312434420 its reverse (24434213001), we get a palindrome (124746647421).

The spelling of 100312434420 in words is "one hundred billion, three hundred twelve million, four hundred thirty-four thousand, four hundred twenty".