231021323020202 has 32 divisors (see below), whose sum is σ = 421152930334080. Its totient is φ = 93589540067520.

The previous prime is 231021323020199. The next prime is 231021323020211. The reversal of 231021323020202 is 202020323120132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13927006598 + ... + 13927023185.

It is an arithmetic number, because the mean of its divisors is an integer number (13161029072940).

Almost surely, 2^{231021323020202} is an apocalyptic number.

231021323020202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231021323020202 is a deficient number, since it is larger than the sum of its proper divisors (190131607313878).

231021323020202 is a wasteful number, since it uses less digits than its factorization.

231021323020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27854029838.

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

Adding to 231021323020202 its reverse (202020323120132), we get a palindrome (433041646140334).

The spelling of 231021323020202 in words is "two hundred thirty-one trillion, twenty-one billion, three hundred twenty-three million, twenty thousand, two hundred two".