201321214540 has 12 divisors (see below), whose sum is σ = 422774550576. Its totient is φ = 80528485808.

The previous prime is 201321214517. The next prime is 201321214571. The reversal of 201321214540 is 45412123102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033030344 + ... + 5033030383.

It is an arithmetic number, because the mean of its divisors is an integer number (35231212548).

Almost surely, 2^201321214540 is an apocalyptic number.

201321214540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201321214540 is an abundant number, since it is smaller than the sum of its proper divisors (221453336036).

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

201321214540 is a wasteful number, since it uses less digits than its factorization.

201321214540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10066060736 (or 10066060734 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 201321214540 its reverse (45412123102), we get a palindrome (246733337642).

The spelling of 201321214540 in words is "two hundred one billion, three hundred twenty-one million, two hundred fourteen thousand, five hundred forty".