213731351075 has 12 divisors (see below), whose sum is σ = 289120228008. Its totient is φ = 155440982400.

The previous prime is 213731351069. The next prime is 213731351147. The reversal of 213731351075 is 570153137312.

It is not a de Polignac number, because 213731351075 - 2⁴ = 213731351059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388602182 + ... + 388602731.

It is an arithmetic number, because the mean of its divisors is an integer number (24093352334).

Almost surely, 2^213731351075 is an apocalyptic number.

213731351075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213731351075 is a deficient number, since it is larger than the sum of its proper divisors (75388876933).

213731351075 is a wasteful number, since it uses less digits than its factorization.

213731351075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777204934 (or 777204929 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 38.

Adding to 213731351075 its reverse (570153137312), we get a palindrome (783884488387).

The spelling of 213731351075 in words is "two hundred thirteen billion, seven hundred thirty-one million, three hundred fifty-one thousand, seventy-five".