219010531031 has 2 divisors, whose sum is σ = 219010531032. Its totient is φ = 219010531030.

The previous prime is 219010531013. The next prime is 219010531079. The reversal of 219010531031 is 130135010912.

Together with previous prime (219010531013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 219010531031 - 2⁶ = 219010530967 is a prime.

It is a super-2 number, since 2×219010531031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219010531081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109505265515 + 109505265516.

It is an arithmetic number, because the mean of its divisors is an integer number (109505265516).

Almost surely, 2^219010531031 is an apocalyptic number.

219010531031 is a deficient number, since it is larger than the sum of its proper divisors (1).

219010531031 is an equidigital number, since it uses as much as digits as its factorization.

219010531031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 26.

Adding to 219010531031 its reverse (130135010912), we get a palindrome (349145541943).

The spelling of 219010531031 in words is "two hundred nineteen billion, ten million, five hundred thirty-one thousand, thirty-one".