231232101321 has 32 divisors (see below), whose sum is σ = 359036471808. Its totient is φ = 131076771840.

The previous prime is 231232101311. The next prime is 231232101377. The reversal of 231232101321 is 123101232132.

It is not a de Polignac number, because 231232101321 - 2⁹ = 231232100809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231232101301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3679120 + ... + 3741441.

It is an arithmetic number, because the mean of its divisors is an integer number (11219889744).

Almost surely, 2^231232101321 is an apocalyptic number.

It is an amenable number.

231232101321 is a deficient number, since it is larger than the sum of its proper divisors (127804370487).

231232101321 is a wasteful number, since it uses less digits than its factorization.

231232101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420641.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231232101321 its reverse (123101232132), we get a palindrome (354333333453).

The spelling of 231232101321 in words is "two hundred thirty-one billion, two hundred thirty-two million, one hundred one thousand, three hundred twenty-one".