231243121203 has 8 divisors (see below), whose sum is σ = 310542321600. Its totient is φ = 153053000808.

The previous prime is 231243121171. The next prime is 231243121237. The reversal of 231243121203 is 302121342132.

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

It is not a de Polignac number, because 231243121203 - 2⁵ = 231243121171 is a prime.

It is a super-2 number, since 2×231243121203² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231243121003) 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, 277269513 + ... + 277270346.

It is an arithmetic number, because the mean of its divisors is an integer number (38817790200).

Almost surely, 2^231243121203 is an apocalyptic number.

231243121203 is a deficient number, since it is larger than the sum of its proper divisors (79299200397).

231243121203 is a wasteful number, since it uses less digits than its factorization.

231243121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554540001.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231243121203 its reverse (302121342132), we get a palindrome (533364463335).

The spelling of 231243121203 in words is "two hundred thirty-one billion, two hundred forty-three million, one hundred twenty-one thousand, two hundred three".