201031040420 has 48 divisors (see below), whose sum is σ = 482522412288. Its totient is φ = 68918083200.

The previous prime is 201031040411. The next prime is 201031040453. The reversal of 201031040420 is 24040130102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460570 + ... + 1592270.

It is an arithmetic number, because the mean of its divisors is an integer number (10052550256).

Almost surely, 2^201031040420 is an apocalyptic number.

201031040420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201031040420 is an abundant number, since it is smaller than the sum of its proper divisors (281491371868).

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

201031040420 is a wasteful number, since it uses less digits than its factorization.

201031040420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142620 (or 142618 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 201031040420 its reverse (24040130102), we get a palindrome (225071170522).

The spelling of 201031040420 in words is "two hundred one billion, thirty-one million, forty thousand, four hundred twenty".