212431014020 has 96 divisors (see below), whose sum is σ = 481133157120. Its totient is φ = 78621903360.

The previous prime is 212431014007. The next prime is 212431014077. The reversal of 212431014020 is 20410134212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212431013983 and 212431014001.

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, 1241465 + ... + 1402175.

It is an arithmetic number, because the mean of its divisors is an integer number (5011803720).

Almost surely, 2^212431014020 is an apocalyptic number.

212431014020 is a gapful number since it is divisible by the number (20) 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 212431014020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240566578560).

212431014020 is an abundant number, since it is smaller than the sum of its proper divisors (268702143100).

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

212431014020 is a wasteful number, since it uses less digits than its factorization.

212431014020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160845 (or 160843 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212431014020 its reverse (20410134212), we get a palindrome (232841148232).

The spelling of 212431014020 in words is "two hundred twelve billion, four hundred thirty-one million, fourteen thousand, twenty".