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2111031131120 = 245157168075727
BaseRepresentation
bin11110101110000011010…
…000101011101111110000
321110210221101111201022122
4132232003100223233300
5234041342432143440
64253443323253412
7305342214355502
oct36560320535760
97423841451278
102111031131120
11744313047a7a
122a117007a268
131240b957b222
14742629a5d72
1539da58a57b5
hex1eb8342bbf0

2111031131120 has 40 divisors (see below), whose sum is σ = 4939409494464. Its totient is φ = 839034024192.

The previous prime is 2111031131119. The next prime is 2111031131197. The reversal of 2111031131120 is 211311301112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84025304 + ... + 84050423.

Almost surely, 22111031131120 is an apocalyptic number.

2111031131120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111031131120 is an abundant number, since it is smaller than the sum of its proper divisors (2828378363344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111031131120 is a wasteful number, since it uses less digits than its factorization.

2111031131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168075897 (or 168075891 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 2111031131120 its reverse (211311301112), we get a palindrome (2322342432232).

The spelling of 2111031131120 in words is "two trillion, one hundred eleven billion, thirty-one million, one hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 157 314 628 785 1256 1570 2512 3140 6280 12560 168075727 336151454 672302908 840378635 1344605816 1680757270 2689211632 3361514540 6723029080 13446058160 26387889139 52775778278 105551556556 131939445695 211103113112 263878891390 422206226224 527757782780 1055515565560 2111031131120