1201231203210 has 24 divisors (see below), whose sum is σ = 3123201128580. Its totient is φ = 320328320832.

The previous prime is 1201231203209. The next prime is 1201231203253. The reversal of 1201231203210 is 123021321021.

1201231203210 is a `hidden beast` number, since 1 + 20 + 1 + 231 + 203 + 210 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1003985964081 + 197245239129 = 1001991^2 + 444123^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6673506595 + ... + 6673506774.

Almost surely, 2^{1201231203210} is an apocalyptic number.

1201231203210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201231203210 is an abundant number, since it is smaller than the sum of its proper divisors (1921969925370).

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

1201231203210 is a wasteful number, since it uses less digits than its factorization.

1201231203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13347013382 (or 13347013379 counting only the distinct ones).

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

Adding to 1201231203210 its reverse (123021321021), we get a palindrome (1324252524231).

The spelling of 1201231203210 in words is "one trillion, two hundred one billion, two hundred thirty-one million, two hundred three thousand, two hundred ten".