203106134340 has 60 divisors (see below), whose sum is σ = 637151470956. Its totient is φ = 54161635392.

The previous prime is 203106134291. The next prime is 203106134353. The reversal of 203106134340 is 43431601302.

203106134340 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 0 + 613 + 4 + 3 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20565280836 + 182540853504 = 143406^2 + 427248^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62685459 + ... + 62688698.

Almost surely, 2^203106134340 is an apocalyptic number.

203106134340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203106134340 is an abundant number, since it is smaller than the sum of its proper divisors (434045336616).

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

203106134340 is a wasteful number, since it uses less digits than its factorization.

203106134340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125374178 (or 125374167 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 203106134340 its reverse (43431601302), we get a palindrome (246537735642).

The spelling of 203106134340 in words is "two hundred three billion, one hundred six million, one hundred thirty-four thousand, three hundred forty".