231002303212 has 6 divisors (see below), whose sum is σ = 404254030628. Its totient is φ = 115501151604.

The previous prime is 231002303143. The next prime is 231002303333. The reversal of 231002303212 is 212303200132.

It is a self number, because there is not a number n which added to its sum of digits gives 231002303212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28875287898 + ... + 28875287905.

Almost surely, 2^231002303212 is an apocalyptic number.

It is an amenable number.

231002303212 is a deficient number, since it is larger than the sum of its proper divisors (173251727416).

231002303212 is a wasteful number, since it uses less digits than its factorization.

231002303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57750575807 (or 57750575805 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231002303212 its reverse (212303200132), we get a palindrome (443305503344).

The spelling of 231002303212 in words is "two hundred thirty-one billion, two million, three hundred three thousand, two hundred twelve".