231203122 has 8 divisors (see below), whose sum is σ = 351689472. Its totient is φ = 113973300.

The previous prime is 231203117. The next prime is 231203129. The reversal of 231203122 is 221302132.

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

It is a junction number, because it is equal to n+sod(n) for n = 231203096 and 231203105.

It is not an unprimeable number, because it can be changed into a prime (231203129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813954 + ... + 814237.

It is an arithmetic number, because the mean of its divisors is an integer number (43961184).

Almost surely, 2^231203122 is an apocalyptic number.

231203122 is a deficient number, since it is larger than the sum of its proper divisors (120486350).

231203122 is a wasteful number, since it uses less digits than its factorization.

231203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628264.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231203122 is about 15205.3649084788. The cubic root of 231203122 is about 613.7590346313.

Adding to 231203122 its reverse (221302132), we get a palindrome (452505254).

The spelling of 231203122 in words is "two hundred thirty-one million, two hundred three thousand, one hundred twenty-two".