213040224132401 has 4 divisors (see below), whose sum is σ = 213832195226100. Its totient is φ = 212248253038704.

The previous prime is 213040224132377. The next prime is 213040224132409. The reversal of 213040224132401 is 104231422040312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42787310522401 + 170252913610000 = 6541201^2 + 13048100^2 .

It is a cyclic number.

It is not a de Polignac number, because 213040224132401 - 2²² = 213040219938097 is a prime.

It is a super-2 number, since 2×213040224132401² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213040224132409) 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, 395985546446 + ... + 395985546983.

It is an arithmetic number, because the mean of its divisors is an integer number (53458048806525).

Almost surely, 2^{213040224132401} is an apocalyptic number.

It is an amenable number.

213040224132401 is a deficient number, since it is larger than the sum of its proper divisors (791971093699).

213040224132401 is an equidigital number, since it uses as much as digits as its factorization.

213040224132401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791971093698.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 213040224132401 its reverse (104231422040312), we get a palindrome (317271646172713).

The spelling of 213040224132401 in words is "two hundred thirteen trillion, forty billion, two hundred twenty-four million, one hundred thirty-two thousand, four hundred one".