2031201216 has 168 divisors, whose sum is σ = 6409815984. Its totient is φ = 609853440.

The previous prime is 2031201197. The next prime is 2031201217. The reversal of 2031201216 is 6121021302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031201217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 714550 + ... + 717386.

Almost surely, 2^2031201216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031201216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3204907992).

2031201216 is an abundant number, since it is smaller than the sum of its proper divisors (4378614768).

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

2031201216 is a wasteful number, since it uses less digits than its factorization.

2031201216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979 (or 2966 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2031201216 is about 45068.8497301629. The cubic root of 2031201216 is about 1266.4391160339.

Adding to 2031201216 its reverse (6121021302), we get a palindrome (8152222518).

The spelling of 2031201216 in words is "two billion, thirty-one million, two hundred one thousand, two hundred sixteen".