331231132112201 has 16 divisors (see below), whose sum is σ = 337692985776720. Its totient is φ = 324777154840320.

The previous prime is 331231132112173. The next prime is 331231132112233. The reversal of 331231132112201 is 102211231132133.

It can be written as a sum of positive squares in 8 ways, for example, as 77328737592976 + 253902394519225 = 8793676^2 + 15934315^2 .

It is a cyclic number.

It is not a de Polignac number, because 331231132112201 - 2¹⁸ = 331231131850057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331231132112261) 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, 2511906011 + ... + 2512037871.

It is an arithmetic number, because the mean of its divisors is an integer number (21105811611045).

Almost surely, 2^{331231132112201} is an apocalyptic number.

It is an amenable number.

331231132112201 is a deficient number, since it is larger than the sum of its proper divisors (6461853664519).

331231132112201 is a wasteful number, since it uses less digits than its factorization.

331231132112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161356.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 331231132112201 its reverse (102211231132133), we get a palindrome (433442363244334).

The spelling of 331231132112201 in words is "three hundred thirty-one trillion, two hundred thirty-one billion, one hundred thirty-two million, one hundred twelve thousand, two hundred one".