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2112141031 = 721121367409
BaseRepresentation
bin111110111100100…
…1011011011100111
312110012100212210121
41331321023123213
513311202003111
6545330302411
7103224621400
oct17571133347
95405325717
102112141031
11994280900
124ab427a07
1327877c0c0
1416072a9a7
15c5664871
hex7de4b6e7

2112141031 has 72 divisors (see below), whose sum is σ = 2959015920. Its totient is φ = 1492888320.

The previous prime is 2112140993. The next prime is 2112141049. The reversal of 2112141031 is 1301412112.

It is not a de Polignac number, because 2112141031 - 225 = 2078586599 is a prime.

It is a super-2 number, since 2×21121410312 = 8922279469667485922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112140996 and 2112141014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112141091) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5163955 + ... + 5164363.

Almost surely, 22112141031 is an apocalyptic number.

2112141031 is a deficient number, since it is larger than the sum of its proper divisors (846874889).

2112141031 is a wasteful number, since it uses less digits than its factorization.

2112141031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2112141031 is about 45958.0355433084. The cubic root of 2112141031 is about 1283.0422895555.

Adding to 2112141031 its reverse (1301412112), we get a palindrome (3413553143).

The spelling of 2112141031 in words is "two billion, one hundred twelve million, one hundred forty-one thousand, thirty-one".

Divisors: 1 7 11 13 49 67 77 91 121 143 409 469 539 637 737 847 871 1001 1573 2863 3283 4499 5159 5317 5929 6097 7007 8107 9581 11011 20041 27403 31493 36113 37219 42679 49489 56749 58487 67067 77077 105391 191821 220451 260533 301433 346423 356239 397243 409409 469469 643357 737737 1342747 2110031 2424961 2493673 2865863 3315763 3918629 4503499 5164159 14770217 17455711 23210341 27430403 31524493 43104919 162472387 192012821 301734433 2112141031