201545020241240 has 32 divisors (see below), whose sum is σ = 488359087508880. Its totient is φ = 74416622858112.

The previous prime is 201545020241197. The next prime is 201545020241293. The reversal of 201545020241240 is 42142020545102.

It is a junction number, because it is equal to n+sod(n) for n = 201545020241197 and 201545020241206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193793288174 + ... + 193793289213.

Almost surely, 2^{201545020241240} is an apocalyptic number.

201545020241240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201545020241240 is an abundant number, since it is smaller than the sum of its proper divisors (286814067267640).

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

201545020241240 is a wasteful number, since it uses less digits than its factorization.

201545020241240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387586577411 (or 387586577407 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 201545020241240 its reverse (42142020545102), we get a palindrome (243687040786342).

The spelling of 201545020241240 in words is "two hundred one trillion, five hundred forty-five billion, twenty million, two hundred forty-one thousand, two hundred forty".