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2111130012 = 223197893033
BaseRepresentation
bin111110111010101…
…0100100110011100
312110010110111221110
41331311110212130
513310422130022
6545252502020
7103213210665
oct17565244634
95403414843
102111130012
11993750252
124ab01a910
132784b6b74
1416054636c
15c551500c
hex7dd5499c

2111130012 has 24 divisors (see below), whose sum is σ = 4950980496. Its totient is φ = 700137088.

The previous prime is 2111130011. The next prime is 2111130013. The reversal of 2111130012 is 2100311112.

It is an interprime number because it is at equal distance from previous prime (2111130011) and next prime (2111130013).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2111130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111130011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444153 + ... + 448880.

It is an arithmetic number, because the mean of its divisors is an integer number (206290854).

Almost surely, 22111130012 is an apocalyptic number.

It is an amenable number.

2111130012 is an abundant number, since it is smaller than the sum of its proper divisors (2839850484).

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

2111130012 is a wasteful number, since it uses less digits than its factorization.

2111130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893237 (or 893235 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 2111130012 is about 45947.0348553636. The cubic root of 2111130012 is about 1282.8375388401.

Adding to 2111130012 its reverse (2100311112), we get a palindrome (4211441124).

The spelling of 2111130012 in words is "two billion, one hundred eleven million, one hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 197 394 591 788 1182 2364 893033 1786066 2679099 3572132 5358198 10716396 175927501 351855002 527782503 703710004 1055565006 2111130012