210120540354 has 12 divisors (see below), whose sum is σ = 455261170806. Its totient is φ = 70040180112.

The previous prime is 210120540349. The next prime is 210120540367. The reversal of 210120540354 is 453045021012.

210120540354 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 205 + 403 + 54 = 666.

It can be written as a sum of positive squares in only one way, i.e., 177639489729 + 32481050625 = 421473^2 + 180225^2 .

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 5 ways as a sum of consecutive naturals, for example, 5836681659 + ... + 5836681694.

Almost surely, 2^210120540354 is an apocalyptic number.

210120540354 is an abundant number, since it is smaller than the sum of its proper divisors (245140630452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210120540354 is a wasteful number, since it uses less digits than its factorization.

210120540354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11673363361 (or 11673363358 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 210120540354 its reverse (453045021012), we get a palindrome (663165561366).

The spelling of 210120540354 in words is "two hundred ten billion, one hundred twenty million, five hundred forty thousand, three hundred fifty-four".