231303221020022 has 4 divisors (see below), whose sum is σ = 346954831530036. Its totient is φ = 115651610510010.

The previous prime is 231303221019979. The next prime is 231303221020057. The reversal of 231303221020022 is 220020122303132.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 231303221020022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57825805255004 + ... + 57825805255007.

It is an arithmetic number, because the mean of its divisors is an integer number (86738707882509).

Almost surely, 2^{231303221020022} is an apocalyptic number.

231303221020022 is a deficient number, since it is larger than the sum of its proper divisors (115651610510014).

231303221020022 is a wasteful number, since it uses less digits than its factorization.

231303221020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115651610510013.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 231303221020022 its reverse (220020122303132), we get a palindrome (451323343323154).

The spelling of 231303221020022 in words is "two hundred thirty-one trillion, three hundred three billion, two hundred twenty-one million, twenty thousand, twenty-two".