203215053261240 has 160 divisors (see below), whose sum is σ = 685359531521280. Its totient is φ = 54005729488128.

The previous prime is 203215053261217. The next prime is 203215053261251. The reversal of 203215053261240 is 42162350512302.

203215053261240 is a `hidden beast` number, since 2 + 0 + 3 + 2 + 1 + 5 + 0 + 5 + 32 + 612 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 203215053261195 and 203215053261204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 106082584 + ... + 107981223.

It is an arithmetic number, because the mean of its divisors is an integer number (4283497072008).

Almost surely, 2^{203215053261240} is an apocalyptic number.

203215053261240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203215053261240 is an abundant number, since it is smaller than the sum of its proper divisors (482144478260040).

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

203215053261240 is a wasteful number, since it uses less digits than its factorization.

203215053261240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214064123 (or 214064110 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 203215053261240 in words is "two hundred three trillion, two hundred fifteen billion, fifty-three million, two hundred sixty-one thousand, two hundred forty".