213040302034423 has 4 divisors (see below), whose sum is σ = 213040361062008. Its totient is φ = 213040243006840.

The previous prime is 213040302034381. The next prime is 213040302034477. The reversal of 213040302034423 is 324430203040312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213040302034423 is a prime.

It is a super-3 number, since 3×213040302034423³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213040342034423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23721061 + ... + 31444702.

It is an arithmetic number, because the mean of its divisors is an integer number (53260090265502).

Almost surely, 2^{213040302034423} is an apocalyptic number.

213040302034423 is a deficient number, since it is larger than the sum of its proper divisors (59027585).

213040302034423 is an equidigital number, since it uses as much as digits as its factorization.

213040302034423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59027584.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 213040302034423 its reverse (324430203040312), we get a palindrome (537470505074735).

The spelling of 213040302034423 in words is "two hundred thirteen trillion, forty billion, three hundred two million, thirty-four thousand, four hundred twenty-three".