201231211331300 has 36 divisors (see below), whose sum is σ = 438248160882420. Its totient is φ = 80201897934720.

The previous prime is 201231211331279. The next prime is 201231211331309. The reversal of 201231211331300 is 3133112132102.

It can be written as a sum of positive squares in 6 ways, for example, as 62661916101184 + 138569295230116 = 7915928^2 + 11771546^2 .

It is not an unprimeable number, because it can be changed into a prime (201231211331309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3632304635 + ... + 3632360034.

Almost surely, 2^{201231211331300} is an apocalyptic number.

201231211331300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201231211331300 is an abundant number, since it is smaller than the sum of its proper divisors (237016949551120).

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

201231211331300 is a wasteful number, since it uses less digits than its factorization.

201231211331300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7264664960 (or 7264664953 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 201231211331300 its reverse (3133112132102), we get a palindrome (204364323463402).

The spelling of 201231211331300 in words is "two hundred one trillion, two hundred thirty-one billion, two hundred eleven million, three hundred thirty-one thousand, three hundred".