201031140140 has 96 divisors (see below), whose sum is σ = 448095654720. Its totient is φ = 75665408000.

The previous prime is 201031140131. The next prime is 201031140161. The reversal of 201031140140 is 41041130102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2524940 + ... + 2603340.

It is an arithmetic number, because the mean of its divisors is an integer number (4667663070).

Almost surely, 2^201031140140 is an apocalyptic number.

201031140140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201031140140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224047827360).

201031140140 is an abundant number, since it is smaller than the sum of its proper divisors (247064514580).

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

201031140140 is a wasteful number, since it uses less digits than its factorization.

201031140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78563 (or 78561 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 201031140140 its reverse (41041130102), we get a palindrome (242072270242).

The spelling of 201031140140 in words is "two hundred one billion, thirty-one million, one hundred forty thousand, one hundred forty".