231040199353 has 2 divisors, whose sum is σ = 231040199354. Its totient is φ = 231040199352.

The previous prime is 231040199323. The next prime is 231040199393. The reversal of 231040199353 is 353991040132.

It is a happy number.

It is an a-pointer prime, because the next prime (231040199393) can be obtained adding 231040199353 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117290495529 + 113749703824 = 342477^2 + 337268^2 .

It is a cyclic number.

It is not a de Polignac number, because 231040199353 - 2²¹ = 231038102201 is a prime.

It is not a weakly prime, because it can be changed into another prime (231040199323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115520099676 + 115520099677.

It is an arithmetic number, because the mean of its divisors is an integer number (115520099677).

Almost surely, 2^231040199353 is an apocalyptic number.

It is an amenable number.

231040199353 is a deficient number, since it is larger than the sum of its proper divisors (1).

231040199353 is an equidigital number, since it uses as much as digits as its factorization.

231040199353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 231040199353 in words is "two hundred thirty-one billion, forty million, one hundred ninety-nine thousand, three hundred fifty-three".