201203402340 has 48 divisors (see below), whose sum is σ = 564054196608. Its totient is φ = 53589033984.

The previous prime is 201203402333. The next prime is 201203402357. The reversal of 201203402340 is 43204302102.

It is a super-2 number, since 2×201203402340² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1987917 + ... + 2086676.

It is an arithmetic number, because the mean of its divisors is an integer number (11751129096).

Almost surely, 2^201203402340 is an apocalyptic number.

201203402340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201203402340 is an abundant number, since it is smaller than the sum of its proper divisors (362850794268).

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

201203402340 is a wasteful number, since it uses less digits than its factorization.

201203402340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075428 (or 4075426 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 201203402340 its reverse (43204302102), we get a palindrome (244407704442).

The spelling of 201203402340 in words is "two hundred one billion, two hundred three million, four hundred two thousand, three hundred forty".