231311442130 has 8 divisors (see below), whose sum is σ = 416360595852. Its totient is φ = 92524576848.

The previous prime is 231311442091. The next prime is 231311442203. The reversal of 231311442130 is 31244113132.

231311442130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 214760876929 + 16550565201 = 463423^2 + 128649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 231311442095 and 231311442104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11565572097 + ... + 11565572116.

Almost surely, 2^231311442130 is an apocalyptic number.

231311442130 is a deficient number, since it is larger than the sum of its proper divisors (185049153722).

231311442130 is a wasteful number, since it uses less digits than its factorization.

231311442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23131144220.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 231311442130 its reverse (31244113132), we get a palindrome (262555555262).

The spelling of 231311442130 in words is "two hundred thirty-one billion, three hundred eleven million, four hundred forty-two thousand, one hundred thirty".