231211100103 has 8 divisors (see below), whose sum is σ = 308329118448. Its totient is φ = 154116907584.

The previous prime is 231211100101. The next prime is 231211100117. The reversal of 231211100103 is 301001112132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231211100103 - 2¹ = 231211100101 is a prime.

It is a super-2 number, since 2×231211100103² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231211100101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5933800 + ... + 5972637.

It is an arithmetic number, because the mean of its divisors is an integer number (38541139806).

Almost surely, 2^231211100103 is an apocalyptic number.

231211100103 is a deficient number, since it is larger than the sum of its proper divisors (77118018345).

231211100103 is a wasteful number, since it uses less digits than its factorization.

231211100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11912913.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 231211100103 its reverse (301001112132), we get a palindrome (532212212235).

The spelling of 231211100103 in words is "two hundred thirty-one billion, two hundred eleven million, one hundred thousand, one hundred three".