231214019 has 2 divisors, whose sum is σ = 231214020. Its totient is φ = 231214018.

The previous prime is 231214007. The next prime is 231214043. The reversal of 231214019 is 910412132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231214019 - 2⁴ = 231214003 is a prime.

It is a super-2 number, since 2×231214019² = 106919845164264722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 231213985 and 231214003.

It is not a weakly prime, because it can be changed into another prime (231214099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115607009 + 115607010.

It is an arithmetic number, because the mean of its divisors is an integer number (115607010).

Almost surely, 2^231214019 is an apocalyptic number.

231214019 is a deficient number, since it is larger than the sum of its proper divisors (1).

231214019 is an equidigital number, since it uses as much as digits as its factorization.

231214019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 231214019 is about 15205.7232317309. The cubic root of 231214019 is about 613.7686769854.

The spelling of 231214019 in words is "two hundred thirty-one million, two hundred fourteen thousand, nineteen".