201010042340 has 12 divisors (see below), whose sum is σ = 422121088956. Its totient is φ = 80404016928.

The previous prime is 201010042313. The next prime is 201010042351. The reversal of 201010042340 is 43240010102.

It can be written as a sum of positive squares in 2 ways, for example, as 129559683136 + 71450359204 = 359944^2 + 267302^2 .

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, 5025251039 + ... + 5025251078.

It is an arithmetic number, because the mean of its divisors is an integer number (35176757413).

Almost surely, 2^201010042340 is an apocalyptic number.

201010042340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201010042340 is an abundant number, since it is smaller than the sum of its proper divisors (221111046616).

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

201010042340 is a wasteful number, since it uses less digits than its factorization.

201010042340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050502126 (or 10050502124 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 201010042340 its reverse (43240010102), we get a palindrome (244250052442).

The spelling of 201010042340 in words is "two hundred one billion, ten million, forty-two thousand, three hundred forty".