231001231103 has 2 divisors, whose sum is σ = 231001231104. Its totient is φ = 231001231102.

The previous prime is 231001231099. The next prime is 231001231133. The reversal of 231001231103 is 301132100132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231001231103 - 2² = 231001231099 is a prime.

It is a super-2 number, since 2×231001231103² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231001231133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115500615551 + 115500615552.

It is an arithmetic number, because the mean of its divisors is an integer number (115500615552).

Almost surely, 2^231001231103 is an apocalyptic number.

231001231103 is a deficient number, since it is larger than the sum of its proper divisors (1).

231001231103 is an equidigital number, since it uses as much as digits as its factorization.

231001231103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 231001231103 its reverse (301132100132), we get a palindrome (532133331235).

The spelling of 231001231103 in words is "two hundred thirty-one billion, one million, two hundred thirty-one thousand, one hundred three".