213113615143 has 32 divisors (see below), whose sum is σ = 254002916160. Its totient is φ = 176246461440.

The previous prime is 213113615101. The next prime is 213113615147. The reversal of 213113615143 is 341516311312.

It is a cyclic number.

It is not a de Polignac number, because 213113615143 - 2⁹ = 213113614631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113615147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14325313 + ... + 14340181.

It is an arithmetic number, because the mean of its divisors is an integer number (7937591130).

Almost surely, 2^213113615143 is an apocalyptic number.

213113615143 is a deficient number, since it is larger than the sum of its proper divisors (40889301017).

213113615143 is a wasteful number, since it uses less digits than its factorization.

213113615143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16339.

The product of its digits is 6480, while the sum is 31.

Adding to 213113615143 its reverse (341516311312), we get a palindrome (554629926455).

The spelling of 213113615143 in words is "two hundred thirteen billion, one hundred thirteen million, six hundred fifteen thousand, one hundred forty-three".