212020003231 has 4 divisors (see below), whose sum is σ = 217191222864. Its totient is φ = 206848783600.

The previous prime is 212020003229. The next prime is 212020003267. The reversal of 212020003231 is 132300020212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212020003231 - 2¹ = 212020003229 is a prime.

It is a super-2 number, since 2×212020003231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020003331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585609755 + ... + 2585609836.

It is an arithmetic number, because the mean of its divisors is an integer number (54297805716).

Almost surely, 2^212020003231 is an apocalyptic number.

212020003231 is a deficient number, since it is larger than the sum of its proper divisors (5171219633).

212020003231 is an equidigital number, since it uses as much as digits as its factorization.

212020003231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171219632.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212020003231 its reverse (132300020212), we get a palindrome (344320023443).

The spelling of 212020003231 in words is "two hundred twelve billion, twenty million, three thousand, two hundred thirty-one".