210120061345 has 32 divisors (see below), whose sum is σ = 267570422784. Its totient is φ = 158143795200.

The previous prime is 210120061339. The next prime is 210120061363. The reversal of 210120061345 is 543160021012.

It is a happy number.

It is not a de Polignac number, because 210120061345 - 2⁵ = 210120061313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1740049 + ... + 1856881.

It is an arithmetic number, because the mean of its divisors is an integer number (8361575712).

Almost surely, 2^210120061345 is an apocalyptic number.

It is an amenable number.

210120061345 is a deficient number, since it is larger than the sum of its proper divisors (57450361439).

210120061345 is a wasteful number, since it uses less digits than its factorization.

210120061345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117193.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 210120061345 its reverse (543160021012), we get a palindrome (753280082357).

The spelling of 210120061345 in words is "two hundred ten billion, one hundred twenty million, sixty-one thousand, three hundred forty-five".