213531303443510 has 96 divisors (see below), whose sum is σ = 419413305991680. Its totient is φ = 77809927193856.

The previous prime is 213531303443467. The next prime is 213531303443561. The reversal of 213531303443510 is 15344303135312.

213531303443510 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213531303443510² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1873303979 + ... + 1873417961.

It is an arithmetic number, because the mean of its divisors is an integer number (4368888604080).

Almost surely, 2^{213531303443510} is an apocalyptic number.

213531303443510 is a deficient number, since it is larger than the sum of its proper divisors (205882002548170).

213531303443510 is a wasteful number, since it uses less digits than its factorization.

213531303443510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116470 (or 116391 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 213531303443510 its reverse (15344303135312), we get a palindrome (228875606578822).

The spelling of 213531303443510 in words is "two hundred thirteen trillion, five hundred thirty-one billion, three hundred three million, four hundred forty-three thousand, five hundred ten".