201540053001 has 32 divisors (see below), whose sum is σ = 308120750080. Its totient is φ = 114786751104.

The previous prime is 201540052999. The next prime is 201540053017. The reversal of 201540053001 is 100350045102.

It is not a de Polignac number, because 201540053001 - 2¹ = 201540052999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201540053801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9512646 + ... + 9533808.

It is an arithmetic number, because the mean of its divisors is an integer number (9628773440).

Almost surely, 2^201540053001 is an apocalyptic number.

201540053001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201540053001 is a deficient number, since it is larger than the sum of its proper divisors (106580697079).

201540053001 is a wasteful number, since it uses less digits than its factorization.

201540053001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22645.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 201540053001 its reverse (100350045102), we get a palindrome (301890098103).

The spelling of 201540053001 in words is "two hundred one billion, five hundred forty million, fifty-three thousand, one".