201211000503645 has 32 divisors (see below), whose sum is σ = 351205333240320. Its totient is φ = 97556660447040.

The previous prime is 201211000503637. The next prime is 201211000503701. The reversal of 201211000503645 is 546305000112102.

201211000503645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201211000503645 - 2³ = 201211000503637 is a prime.

It is a congruent 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, 126287862 + ... + 127871208.

It is an arithmetic number, because the mean of its divisors is an integer number (10975166663760).

Almost surely, 2^{201211000503645} is an apocalyptic number.

It is an amenable number.

201211000503645 is a deficient number, since it is larger than the sum of its proper divisors (149994332736675).

201211000503645 is a wasteful number, since it uses less digits than its factorization.

201211000503645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353545.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 201211000503645 its reverse (546305000112102), we get a palindrome (747516000615747).

The spelling of 201211000503645 in words is "two hundred one trillion, two hundred eleven billion, five hundred three thousand, six hundred forty-five".