131200231231211 has 32 divisors (see below), whose sum is σ = 133993964966400. Its totient is φ = 128446791033600.

The previous prime is 131200231231189. The next prime is 131200231231217. The reversal of 131200231231211 is 112132132002131.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131200231231211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131200231231217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4208222255 + ... + 4208253431.

It is an arithmetic number, because the mean of its divisors is an integer number (4187311405200).

Almost surely, 2^{131200231231211} is an apocalyptic number.

131200231231211 is a deficient number, since it is larger than the sum of its proper divisors (2793733735189).

131200231231211 is a wasteful number, since it uses less digits than its factorization.

131200231231211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32915.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 131200231231211 its reverse (112132132002131), we get a palindrome (243332363233342).

The spelling of 131200231231211 in words is "one hundred thirty-one trillion, two hundred billion, two hundred thirty-one million, two hundred thirty-one thousand, two hundred eleven".