201011031231220 has 24 divisors (see below), whose sum is σ = 482426474955264. Its totient is φ = 68918067850656.

The previous prime is 201011031231187. The next prime is 201011031231277. The reversal of 201011031231220 is 22132130110102.

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, 717896539972 + ... + 717896540251.

It is an arithmetic number, because the mean of its divisors is an integer number (20101103123136).

Almost surely, 2^{201011031231220} is an apocalyptic number.

201011031231220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011031231220 is an abundant number, since it is smaller than the sum of its proper divisors (281415443724044).

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

201011031231220 is a wasteful number, since it uses less digits than its factorization.

201011031231220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435793080239 (or 1435793080237 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 201011031231220 its reverse (22132130110102), we get a palindrome (223143161341322).

The spelling of 201011031231220 in words is "two hundred one trillion, eleven billion, thirty-one million, two hundred thirty-one thousand, two hundred twenty".