201340213481 has 8 divisors (see below), whose sum is σ = 219654198624. Its totient is φ = 183027949920.

The previous prime is 201340213387. The next prime is 201340213483. The reversal of 201340213481 is 184312043102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201340213481 is a prime.

It is a super-2 number, since 2×201340213481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201340213483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179495 + ... + 659468.

It is an arithmetic number, because the mean of its divisors is an integer number (27456774828).

Almost surely, 2^201340213481 is an apocalyptic number.

It is an amenable number.

201340213481 is a deficient number, since it is larger than the sum of its proper divisors (18313985143).

201340213481 is a wasteful number, since it uses less digits than its factorization.

201340213481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860791.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 201340213481 its reverse (184312043102), we get a palindrome (385652256583).

The spelling of 201340213481 in words is "two hundred one billion, three hundred forty million, two hundred thirteen thousand, four hundred eighty-one".