231401434213442 has 16 divisors (see below), whose sum is σ = 361586141664000. Its totient is φ = 110941202549520.

The previous prime is 231401434213393. The next prime is 231401434213463. The reversal of 231401434213442 is 244312434104132.

It is a junction number, because it is equal to n+sod(n) for n = 231401434213396 and 231401434213405.

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, 17120549192 + ... + 17120562707.

It is an arithmetic number, because the mean of its divisors is an integer number (22599133854000).

Almost surely, 2^{231401434213442} is an apocalyptic number.

231401434213442 is a deficient number, since it is larger than the sum of its proper divisors (130184707450558).

231401434213442 is a wasteful number, since it uses less digits than its factorization.

231401434213442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34241112041.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 231401434213442 its reverse (244312434104132), we get a palindrome (475713868317574).

The spelling of 231401434213442 in words is "two hundred thirty-one trillion, four hundred one billion, four hundred thirty-four million, two hundred thirteen thousand, four hundred forty-two".