201024240140 has 24 divisors (see below), whose sum is σ = 425232303552. Its totient is φ = 79822762880.

The previous prime is 201024240133. The next prime is 201024240143. The reversal of 201024240140 is 41042420102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (201024240143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36680516 + ... + 36685995.

It is an arithmetic number, because the mean of its divisors is an integer number (17718012648).

Almost surely, 2^201024240140 is an apocalyptic number.

201024240140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201024240140 is an abundant number, since it is smaller than the sum of its proper divisors (224208063412).

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

201024240140 is a wasteful number, since it uses less digits than its factorization.

201024240140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73366657 (or 73366655 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 201024240140 its reverse (41042420102), we get a palindrome (242066660242).

The spelling of 201024240140 in words is "two hundred one billion, twenty-four million, two hundred forty thousand, one hundred forty".