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1201110023 = 19295936947
BaseRepresentation
bin100011110010111…
…0111110000000111
310002201002201012102
41013211313300013
54424441010043
6315103542315
741523160331
oct10745676007
93081081172
101201110023
11566aa4813
122962ba99b
13161ac27b9
14b573c451
15706a96b8
hex47977c07

1201110023 has 16 divisors (see below), whose sum is σ = 1330128000. Its totient is φ = 1080005472.

The previous prime is 1201110007. The next prime is 1201110037. The reversal of 1201110023 is 3200111021.

It is not a de Polignac number, because 1201110023 - 24 = 1201110007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201109986 and 1201110013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201110073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14036 + ... + 50982.

It is an arithmetic number, because the mean of its divisors is an integer number (83133000).

Almost surely, 21201110023 is an apocalyptic number.

1201110023 is a deficient number, since it is larger than the sum of its proper divisors (129017977).

1201110023 is a wasteful number, since it uses less digits than its factorization.

1201110023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37054.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1201110023 is about 34657.0342499182. The cubic root of 1201110023 is about 1062.9861280520.

Adding to 1201110023 its reverse (3200111021), we get a palindrome (4401221044).

The spelling of 1201110023 in words is "one billion, two hundred one million, one hundred ten thousand, twenty-three".

Divisors: 1 19 29 59 551 1121 1711 32509 36947 701993 1071463 2179873 20357797 41417587 63216317 1201110023