231203031122 has 32 divisors (see below), whose sum is σ = 400631474304. Its totient is φ = 98017920000.

The previous prime is 231203031107. The next prime is 231203031167. The reversal of 231203031122 is 221130302132.

It is a junction number, because it is equal to n+sod(n) for n = 231203031094 and 231203031103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1515122 + ... + 1660722.

It is an arithmetic number, because the mean of its divisors is an integer number (12519733572).

Almost surely, 2^231203031122 is an apocalyptic number.

231203031122 is a deficient number, since it is larger than the sum of its proper divisors (169428443182).

231203031122 is a wasteful number, since it uses less digits than its factorization.

231203031122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146834.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231203031122 its reverse (221130302132), we get a palindrome (452333333254).

The spelling of 231203031122 in words is "two hundred thirty-one billion, two hundred three million, thirty-one thousand, one hundred twenty-two".