210120540356 has 12 divisors (see below), whose sum is σ = 373199169168. Its totient is φ = 103492206312.

The previous prime is 210120540349. The next prime is 210120540367. The reversal of 210120540356 is 653045021012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392015666 + ... + 392016201.

It is an arithmetic number, because the mean of its divisors is an integer number (31099930764).

Almost surely, 2^210120540356 is an apocalyptic number.

It is an amenable number.

210120540356 is a deficient number, since it is larger than the sum of its proper divisors (163078628812).

210120540356 is a wasteful number, since it uses less digits than its factorization.

210120540356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784031938 (or 784031936 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 210120540356 its reverse (653045021012), we get a palindrome (863165561368).

The spelling of 210120540356 in words is "two hundred ten billion, one hundred twenty million, five hundred forty thousand, three hundred fifty-six".