231212202003 has 16 divisors (see below), whose sum is σ = 343630974240. Its totient is φ = 153648997632.

The previous prime is 231212201933. The next prime is 231212202031. The reversal of 231212202003 is 300202212132.

231212202003 is a `hidden beast` number, since 231 + 212 + 20 + 200 + 3 = 666.

It is not a de Polignac number, because 231212202003 - 2¹⁸ = 231211939859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231212202703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13671126 + ... + 13688027.

It is an arithmetic number, because the mean of its divisors is an integer number (21476935890).

Almost surely, 2^231212202003 is an apocalyptic number.

231212202003 is a deficient number, since it is larger than the sum of its proper divisors (112418772237).

231212202003 is a wasteful number, since it uses less digits than its factorization.

231212202003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27359475 (or 27359469 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 231212202003 its reverse (300202212132), we get a palindrome (531414414135).

The spelling of 231212202003 in words is "two hundred thirty-one billion, two hundred twelve million, two hundred two thousand, three".