231103202201321 has 4 divisors (see below), whose sum is σ = 232313166610944. Its totient is φ = 229893237791700.

The previous prime is 231103202201189. The next prime is 231103202201329. The reversal of 231103202201321 is 123102202301132.

231103202201321 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231103202201321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231103202201329) 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, 604982204525 + ... + 604982204906.

It is an arithmetic number, because the mean of its divisors is an integer number (58078291652736).

Almost surely, 2^{231103202201321} is an apocalyptic number.

It is an amenable number.

231103202201321 is a deficient number, since it is larger than the sum of its proper divisors (1209964409623).

231103202201321 is a wasteful number, since it uses less digits than its factorization.

231103202201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209964409622.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 231103202201321 its reverse (123102202301132), we get a palindrome (354205404502453).

The spelling of 231103202201321 in words is "two hundred thirty-one trillion, one hundred three billion, two hundred two million, two hundred one thousand, three hundred twenty-one".