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1200110131 = 11109100921
BaseRepresentation
bin100011110001000…
…0011101000110011
310002122012220121101
41013202003220303
54424212011011
6315030305231
741511524233
oct10742035063
93078186541
101200110131
11566481560
12295ab8217
1316183264c
14b555bcc3
157055d2c1
hex47883a33

1200110131 has 4 divisors (see below), whose sum is σ = 1309211064. Its totient is φ = 1091009200.

The previous prime is 1200110117. The next prime is 1200110137. The reversal of 1200110131 is 1310110021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1200110131 - 227 = 1065892403 is a prime.

It is a super-2 number, since 2×12001101312 = 2880528653057674322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200110137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54550450 + ... + 54550471.

It is an arithmetic number, because the mean of its divisors is an integer number (327302766).

Almost surely, 21200110131 is an apocalyptic number.

1200110131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1200110131 is a deficient number, since it is larger than the sum of its proper divisors (109100933).

1200110131 is a wasteful number, since it uses less digits than its factorization.

1200110131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109100932.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1200110131 is about 34642.6057189698. The cubic root of 1200110131 is about 1062.6910769801.

Adding to 1200110131 its reverse (1310110021), we get a palindrome (2510220152).

The spelling of 1200110131 in words is "one billion, two hundred million, one hundred ten thousand, one hundred thirty-one".

Divisors: 1 11 109100921 1200110131