231313121230 has 16 divisors (see below), whose sum is σ = 440855596080. Its totient is φ = 87082586752.

The previous prime is 231313121159. The next prime is 231313121309. The reversal of 231313121230 is 32121313132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680332540 + ... + 680332879.

It is an arithmetic number, because the mean of its divisors is an integer number (27553474755).

Almost surely, 2^231313121230 is an apocalyptic number.

231313121230 is a deficient number, since it is larger than the sum of its proper divisors (209542474850).

231313121230 is a wasteful number, since it uses less digits than its factorization.

231313121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360665443.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231313121230 its reverse (32121313132), we get a palindrome (263434434362).

The spelling of 231313121230 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred thirty".