231021322330201 has 4 divisors (see below), whose sum is σ = 248792193278692. Its totient is φ = 213250451381712.

The previous prime is 231021322330163. The next prime is 231021322330217. The reversal of 231021322330201 is 102033223120132.

231021322330201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17363463968601 + 213657858361600 = 4166949^2 + 14617040^2 .

It is a cyclic number.

It is not a de Polignac number, because 231021322330201 - 2²⁵ = 231021288775769 is a prime.

It is a super-3 number, since 3×231021322330201³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231021322330301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8885435474226 + ... + 8885435474251.

It is an arithmetic number, because the mean of its divisors is an integer number (62198048319673).

Almost surely, 2^{231021322330201} is an apocalyptic number.

It is an amenable number.

231021322330201 is a deficient number, since it is larger than the sum of its proper divisors (17770870948491).

231021322330201 is a wasteful number, since it uses less digits than its factorization.

231021322330201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17770870948490.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 231021322330201 its reverse (102033223120132), we get a palindrome (333054545450333).

The spelling of 231021322330201 in words is "two hundred thirty-one trillion, twenty-one billion, three hundred twenty-two million, three hundred thirty thousand, two hundred one".