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331220120023 = 1327127603977
BaseRepresentation
bin1001101000111100100…
…00011111000111010111
31011122221022002110010201
410310132100133013113
520411314322320043
6412054352401331
732633641365412
oct4643620370727
91148838073121
10331220120023
11118519139591
1254238b46247
1325306c11100
1412061636b79
158938499c4d
hex4d1e41f1d7

331220120023 has 12 divisors (see below), whose sum is σ = 363710014128. Its totient is φ = 301435417920.

The previous prime is 331220120003. The next prime is 331220120047. The reversal of 331220120023 is 320021022133.

It is not a de Polignac number, because 331220120023 - 217 = 331219988951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220120003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13789990 + ... + 13813987.

It is an arithmetic number, because the mean of its divisors is an integer number (30309167844).

Almost surely, 2331220120023 is an apocalyptic number.

331220120023 is a deficient number, since it is larger than the sum of its proper divisors (32489894105).

331220120023 is a wasteful number, since it uses less digits than its factorization.

331220120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27604074 (or 27604061 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 331220120023 its reverse (320021022133), we get a palindrome (651241142156).

The spelling of 331220120023 in words is "three hundred thirty-one billion, two hundred twenty million, one hundred twenty thousand, twenty-three".

Divisors: 1 13 71 169 923 11999 27603977 358851701 1959882367 4665072113 25478470771 331220120023