213054043415 has 4 divisors (see below), whose sum is σ = 255664852104. Its totient is φ = 170443234728.

The previous prime is 213054043409. The next prime is 213054043421. The reversal of 213054043415 is 514340450312.

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

It is an interprime number because it is at equal distance from previous prime (213054043409) and next prime (213054043421).

It is a cyclic number.

It is not a de Polignac number, because 213054043415 - 2⁶ = 213054043351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21305404337 + ... + 21305404346.

It is an arithmetic number, because the mean of its divisors is an integer number (63916213026).

Almost surely, 2^213054043415 is an apocalyptic number.

213054043415 is a deficient number, since it is larger than the sum of its proper divisors (42610808689).

213054043415 is an equidigital number, since it uses as much as digits as its factorization.

213054043415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42610808688.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 213054043415 its reverse (514340450312), we get a palindrome (727394493727).

The spelling of 213054043415 in words is "two hundred thirteen billion, fifty-four million, forty-three thousand, four hundred fifteen".