10031012420 has 96 divisors (see below), whose sum is σ = 25601425920. Its totient is φ = 3250920960.

The previous prime is 10031012413. The next prime is 10031012441. The reversal of 10031012420 is 2421013001.

It is a junction number, because it is equal to n+sod(n) for n = 10031012395 and 10031012404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22469 + ... + 143411.

It is an arithmetic number, because the mean of its divisors is an integer number (266681520).

Almost surely, 2^10031012420 is an apocalyptic number.

10031012420 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 10031012420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12800712960).

10031012420 is an abundant number, since it is smaller than the sum of its proper divisors (15570413500).

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

10031012420 is a wasteful number, since it uses less digits than its factorization.

10031012420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121005 (or 121003 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10031012420 its reverse (2421013001), we get a palindrome (12452025421).

The spelling of 10031012420 in words is "ten billion, thirty-one million, twelve thousand, four hundred twenty".