231213534334 has 16 divisors (see below), whose sum is σ = 373564097280. Its totient is φ = 106975171800.

The previous prime is 231213534313. The next prime is 231213534359. The reversal of 231213534334 is 433435312132.

It is a self number, because there is not a number n which added to its sum of digits gives 231213534334.

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, 70749142 + ... + 70752409.

It is an arithmetic number, because the mean of its divisors is an integer number (23347756080).

Almost surely, 2^231213534334 is an apocalyptic number.

231213534334 is a deficient number, since it is larger than the sum of its proper divisors (142350562946).

231213534334 is a wasteful number, since it uses less digits than its factorization.

231213534334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141501615.

The product of its digits is 77760, while the sum is 34.

Adding to 231213534334 its reverse (433435312132), we get a palindrome (664648846466).

The spelling of 231213534334 in words is "two hundred thirty-one billion, two hundred thirteen million, five hundred thirty-four thousand, three hundred thirty-four".