231211200310103 has 32 divisors (see below), whose sum is σ = 262225159848960. Its totient is φ = 202097621185920.

The previous prime is 231211200310093. The next prime is 231211200310327. The reversal of 231211200310103 is 301013002112132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 231211200310103 - 2³² = 231206905342807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231211200340103) 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, 6420196925 + ... + 6420232937.

It is an arithmetic number, because the mean of its divisors is an integer number (8194536245280).

Almost surely, 2^{231211200310103} is an apocalyptic number.

231211200310103 is a deficient number, since it is larger than the sum of its proper divisors (31013959538857).

231211200310103 is a wasteful number, since it uses less digits than its factorization.

231211200310103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47559.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 231211200310103 its reverse (301013002112132), we get a palindrome (532224202422235).

The spelling of 231211200310103 in words is "two hundred thirty-one trillion, two hundred eleven billion, two hundred million, three hundred ten thousand, one hundred three".