220231042311 has 16 divisors (see below), whose sum is σ = 336604037888. Its totient is φ = 125466105600.

The previous prime is 220231042309. The next prime is 220231042313. The reversal of 220231042311 is 113240132022.

It is an interprime number because it is at equal distance from previous prime (220231042309) and next prime (220231042313).

It is not a de Polignac number, because 220231042311 - 2¹ = 220231042309 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220231042313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15834730 + ... + 15848631.

It is an arithmetic number, because the mean of its divisors is an integer number (21037752368).

Almost surely, 2^220231042311 is an apocalyptic number.

220231042311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220231042311 is a deficient number, since it is larger than the sum of its proper divisors (116372995577).

220231042311 is a wasteful number, since it uses less digits than its factorization.

220231042311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31683702.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 220231042311 its reverse (113240132022), we get a palindrome (333471174333).

The spelling of 220231042311 in words is "two hundred twenty billion, two hundred thirty-one million, forty-two thousand, three hundred eleven".