231200210332021 has 16 divisors (see below), whose sum is σ = 269840619648000. Its totient is φ = 198010362271344.

The previous prime is 231200210331919. The next prime is 231200210332031. The reversal of 231200210332021 is 120233012002132.

It is not a de Polignac number, because 231200210332021 - 2¹⁹ = 231200209807733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231200210331983 and 231200210332001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231200210332031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273806725 + ... + 274649818.

It is an arithmetic number, because the mean of its divisors is an integer number (16865038728000).

Almost surely, 2^{231200210332021} is an apocalyptic number.

It is an amenable number.

231200210332021 is a deficient number, since it is larger than the sum of its proper divisors (38640409315979).

231200210332021 is an equidigital number, since it uses as much as digits as its factorization.

231200210332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548457793 (or 548457779 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231200210332021 its reverse (120233012002132), we get a palindrome (351433222334153).

The spelling of 231200210332021 in words is "two hundred thirty-one trillion, two hundred billion, two hundred ten million, three hundred thirty-two thousand, twenty-one".