213400240019 has 16 divisors (see below), whose sum is σ = 220671216000. Its totient is φ = 206261293056.

The previous prime is 213400240013. The next prime is 213400240021. The reversal of 213400240019 is 910042004312.

It is a cyclic number.

It is not a de Polignac number, because 213400240019 - 2⁸ = 213400239763 is a prime.

It is a super-2 number, since 2×213400240019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213400240019.

It is not an unprimeable number, because it can be changed into a prime (213400240013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1823207 + ... + 1936719.

It is an arithmetic number, because the mean of its divisors is an integer number (13791951000).

Almost surely, 2^213400240019 is an apocalyptic number.

213400240019 is a deficient number, since it is larger than the sum of its proper divisors (7270975981).

213400240019 is a wasteful number, since it uses less digits than its factorization.

213400240019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114094.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 213400240019 in words is "two hundred thirteen billion, four hundred million, two hundred forty thousand, nineteen".