210344120402145 has 32 divisors (see below), whose sum is σ = 345891869274240. Its totient is φ = 109074075770880.

The previous prime is 210344120402123. The next prime is 210344120402147. The reversal of 210344120402145 is 541204021443012.

It is not a de Polignac number, because 210344120402145 - 2²¹ = 210344118304993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210344120402147) 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, 133709991 + ... + 135273980.

It is an arithmetic number, because the mean of its divisors is an integer number (10809120914820).

Almost surely, 2^{210344120402145} is an apocalyptic number.

It is an amenable number.

210344120402145 is a deficient number, since it is larger than the sum of its proper divisors (135547748872095).

210344120402145 is a wasteful number, since it uses less digits than its factorization.

210344120402145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268985425.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 210344120402145 its reverse (541204021443012), we get a palindrome (751548141845157).

The spelling of 210344120402145 in words is "two hundred ten trillion, three hundred forty-four billion, one hundred twenty million, four hundred two thousand, one hundred forty-five".