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1213032023203 = 71131310015043
BaseRepresentation
bin10001101001101110010…
…101111100010010100011
311021222001021202111000111
4101221232111330102203
5124333242144220303
62325131554032151
7153432031033540
oct21515625742243
94258037674014
101213032023203
11428497a54000
12177115b78657
138a5084bc540
14429d522bbc7
1521848d65b6d
hex11a6e57c4a3

1213032023203 has 32 divisors (see below), whose sum is σ = 1642146734592. Its totient is φ = 872510459040.

The previous prime is 1213032023197. The next prime is 1213032023209. The reversal of 1213032023203 is 3023202303121.

It is an interprime number because it is at equal distance from previous prime (1213032023197) and next prime (1213032023209).

It is not a de Polignac number, because 1213032023203 - 25 = 1213032023171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213032023209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4886401 + ... + 5128642.

It is an arithmetic number, because the mean of its divisors is an integer number (51317085456).

Almost surely, 21213032023203 is an apocalyptic number.

1213032023203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1213032023203 is a deficient number, since it is larger than the sum of its proper divisors (429114711389).

1213032023203 is a wasteful number, since it uses less digits than its factorization.

1213032023203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10015096 (or 10015074 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1213032023203 its reverse (3023202303121), we get a palindrome (4236234326324).

The spelling of 1213032023203 in words is "one trillion, two hundred thirteen billion, thirty-two million, twenty-three thousand, two hundred three".

Divisors: 1 7 11 13 77 91 121 143 847 1001 1331 1573 9317 11011 17303 121121 10015043 70105301 110165473 130195559 771158311 911368913 1211820203 1432151149 8482741421 10025058043 13330022233 15753662639 93310155631 110275638473 173290289029 1213032023203