231211328127 has 8 divisors (see below), whose sum is σ = 331995753264. Its totient is φ = 142283894208.

The previous prime is 231211328123. The next prime is 231211328129. The reversal of 231211328127 is 721823112132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231211328127 - 2² = 231211328123 is a prime.

It is a super-2 number, since 2×231211328127² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231211328123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2964247758 + ... + 2964247835.

It is an arithmetic number, because the mean of its divisors is an integer number (41499469158).

Almost surely, 2^231211328127 is an apocalyptic number.

231211328127 is a deficient number, since it is larger than the sum of its proper divisors (100784425137).

231211328127 is a wasteful number, since it uses less digits than its factorization.

231211328127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928495609.

The product of its digits is 8064, while the sum is 33.

The spelling of 231211328127 in words is "two hundred thirty-one billion, two hundred eleven million, three hundred twenty-eight thousand, one hundred twenty-seven".