231032211001 has 2 divisors, whose sum is σ = 231032211002. Its totient is φ = 231032211000.

The previous prime is 231032210999. The next prime is 231032211017. The reversal of 231032211001 is 100112230132.

It is an a-pointer prime, because the next prime (231032211017) can be obtained adding 231032211001 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135983937600 + 95048273401 = 368760^2 + 308299^2 .

It is a cyclic number.

It is not a de Polignac number, because 231032211001 - 2¹ = 231032210999 is a prime.

Together with 231032210999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231032211041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115516105500 + 115516105501.

It is an arithmetic number, because the mean of its divisors is an integer number (115516105501).

Almost surely, 2^231032211001 is an apocalyptic number.

It is an amenable number.

231032211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

231032211001 is an equidigital number, since it uses as much as digits as its factorization.

231032211001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 231032211001 its reverse (100112230132), we get a palindrome (331144441133).

The spelling of 231032211001 in words is "two hundred thirty-one billion, thirty-two million, two hundred eleven thousand, one".