1211200231300 has 18 divisors (see below), whose sum is σ = 2628304502138. Its totient is φ = 484480092480.

The previous prime is 1211200231271. The next prime is 1211200231301. The reversal of 1211200231300 is 31320021121.

It can be written as a sum of positive squares in 3 ways, for example, as 258842842756 + 952357388544 = 508766^2 + 975888^2 .

It is not an unprimeable number, because it can be changed into a prime (1211200231301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6056001057 + ... + 6056001256.

Almost surely, 2^{1211200231300} is an apocalyptic number.

1211200231300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211200231300 is an abundant number, since it is smaller than the sum of its proper divisors (1417104270838).

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

1211200231300 is a wasteful number, since it uses less digits than its factorization.

1211200231300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12112002327 (or 12112002320 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1211200231300 its reverse (31320021121), we get a palindrome (1242520252421).

The spelling of 1211200231300 in words is "one trillion, two hundred eleven billion, two hundred million, two hundred thirty-one thousand, three hundred".