213400240499 has 2 divisors, whose sum is σ = 213400240500. Its totient is φ = 213400240498.

The previous prime is 213400240421. The next prime is 213400240601. The reversal of 213400240499 is 994042004312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213400240499 - 2²⁴ = 213383463283 is a prime.

It is not a weakly prime, because it can be changed into another prime (213400240099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106700120249 + 106700120250.

It is an arithmetic number, because the mean of its divisors is an integer number (106700120250).

Almost surely, 2^213400240499 is an apocalyptic number.

213400240499 is a deficient number, since it is larger than the sum of its proper divisors (1).

213400240499 is an equidigital number, since it uses as much as digits as its factorization.

213400240499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 213400240499 in words is "two hundred thirteen billion, four hundred million, two hundred forty thousand, four hundred ninety-nine".