231303212030 has 16 divisors (see below), whose sum is σ = 454195398384. Its totient is φ = 84110258880.

The previous prime is 231303212017. The next prime is 231303212033. The reversal of 231303212030 is 30212303132.

It is a junction number, because it is equal to n+sod(n) for n = 231303211993 and 231303212011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231303212033) 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, 1051378127 + ... + 1051378346.

It is an arithmetic number, because the mean of its divisors is an integer number (28387212399).

Almost surely, 2^231303212030 is an apocalyptic number.

231303212030 is a deficient number, since it is larger than the sum of its proper divisors (222892186354).

231303212030 is a wasteful number, since it uses less digits than its factorization.

231303212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102756491.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 231303212030 its reverse (30212303132), we get a palindrome (261515515162).

The spelling of 231303212030 in words is "two hundred thirty-one billion, three hundred three million, two hundred twelve thousand, thirty".