231310322130 has 32 divisors (see below), whose sum is σ = 556159702464. Its totient is φ = 61569982656.

The previous prime is 231310322071. The next prime is 231310322141. The reversal of 231310322130 is 31223013132.

It is a junction number, because it is equal to n+sod(n) for n = 231310322097 and 231310322106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7031437 + ... + 7064256.

It is an arithmetic number, because the mean of its divisors is an integer number (17379990702).

Almost surely, 2^231310322130 is an apocalyptic number.

231310322130 is an abundant number, since it is smaller than the sum of its proper divisors (324849380334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231310322130 is a wasteful number, since it uses less digits than its factorization.

231310322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14096250.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231310322130 its reverse (31223013132), we get a palindrome (262533335262).

The spelling of 231310322130 in words is "two hundred thirty-one billion, three hundred ten million, three hundred twenty-two thousand, one hundred thirty".