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2020331101031 = 17318634442231
BaseRepresentation
bin11101011001100101000…
…111100001101101100111
321011010211100101210102222
4131121211013201231213
5231100114230213111
64144043255022555
7265651455004055
oct35314507415547
97133740353388
102020331101031
117098aa266a21
1228767896aa5b
13118693708c79
146dadab231d5
1537847d4c7db
hex1d6651e1b67

2020331101031 has 16 divisors (see below), whose sum is σ = 2210738946048. Its totient is φ = 1838017084800.

The previous prime is 2020331100989. The next prime is 2020331101127. The reversal of 2020331101031 is 1301011330202.

It is a cyclic number.

It is not a de Polignac number, because 2020331101031 - 218 = 2020330838887 is a prime.

It is a super-2 number, since 2×20203311010312 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020331101231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1766315 + ... + 2675916.

It is an arithmetic number, because the mean of its divisors is an integer number (138171184128).

Almost surely, 22020331101031 is an apocalyptic number.

2020331101031 is a deficient number, since it is larger than the sum of its proper divisors (190407845017).

2020331101031 is a wasteful number, since it uses less digits than its factorization.

2020331101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443142.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 2020331101031 its reverse (1301011330202), we get a palindrome (3321342431233).

The spelling of 2020331101031 in words is "two trillion, twenty billion, three hundred thirty-one million, one hundred one thousand, thirty-one".

Divisors: 1 17 31 527 863 14671 26753 454801 4442231 75517927 137709161 2341055737 3833645353 65171971001 118843005943 2020331101031