231220212432067 has 2 divisors, whose sum is σ = 231220212432068. Its totient is φ = 231220212432066.

The previous prime is 231220212431977. The next prime is 231220212432071. The reversal of 231220212432067 is 760234212022132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231220212432067 - 2¹¹ = 231220212430019 is a prime.

It is not a weakly prime, because it can be changed into another prime (231220212432367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115610106216033 + 115610106216034.

It is an arithmetic number, because the mean of its divisors is an integer number (115610106216034).

Almost surely, 2^{231220212432067} is an apocalyptic number.

231220212432067 is a deficient number, since it is larger than the sum of its proper divisors (1).

231220212432067 is an equidigital number, since it uses as much as digits as its factorization.

231220212432067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 37.

Adding to 231220212432067 its reverse (760234212022132), we get a palindrome (991454424454199).

The spelling of 231220212432067 in words is "two hundred thirty-one trillion, two hundred twenty billion, two hundred twelve million, four hundred thirty-two thousand, sixty-seven".