231413330442 has 128 divisors (see below), whose sum is σ = 544494182400. Its totient is φ = 64205482176.

The previous prime is 231413330413. The next prime is 231413330443. The reversal of 231413330442 is 244033314132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231413330443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111095133 + ... + 111097215.

It is an arithmetic number, because the mean of its divisors is an integer number (4253860800).

Almost surely, 2^231413330442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231413330442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272247091200).

231413330442 is an abundant number, since it is smaller than the sum of its proper divisors (313080851958).

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

231413330442 is a wasteful number, since it uses less digits than its factorization.

231413330442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 231413330442 its reverse (244033314132), we get a palindrome (475446644574).

The spelling of 231413330442 in words is "two hundred thirty-one billion, four hundred thirteen million, three hundred thirty thousand, four hundred forty-two".