1211203120232 has 64 divisors (see below), whose sum is σ = 2658355814400. Its totient is φ = 506526229440.

The previous prime is 1211203120229. The next prime is 1211203120243. The reversal of 1211203120232 is 2320213021121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2259857 + ... + 2743967.

It is an arithmetic number, because the mean of its divisors is an integer number (41536809600).

Almost surely, 2^{1211203120232} 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 1211203120232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329177907200).

1211203120232 is an abundant number, since it is smaller than the sum of its proper divisors (1447152694168).

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

1211203120232 is a wasteful number, since it uses less digits than its factorization.

1211203120232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485206 (or 485202 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1211203120232 its reverse (2320213021121), we get a palindrome (3531416141353).

The spelling of 1211203120232 in words is "one trillion, two hundred eleven billion, two hundred three million, one hundred twenty thousand, two hundred thirty-two".