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1120230131 = 7823143197
BaseRepresentation
bin100001011000101…
…0101101011110011
32220001220120211212
41002301111223303
54243234331011
6303054230335
736521541026
oct10261255363
92801816755
101120230131
11525382529
122731b53ab
1314b114a87
14a8ac71bd
156853008b
hex42c55af3

1120230131 has 4 divisors (see below), whose sum is σ = 1120381152. Its totient is φ = 1120079112.

The previous prime is 1120230107. The next prime is 1120230143. The reversal of 1120230131 is 1310320211.

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 1120230131 - 210 = 1120229107 is a prime.

It is a super-2 number, since 2×11202301312 = 2509831092800554322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120230161) 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, 63776 + ... + 79421.

It is an arithmetic number, because the mean of its divisors is an integer number (280095288).

Almost surely, 21120230131 is an apocalyptic number.

1120230131 is a deficient number, since it is larger than the sum of its proper divisors (151021).

1120230131 is an equidigital number, since it uses as much as digits as its factorization.

1120230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151020.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1120230131 is about 33469.8391242026. The cubic root of 1120230131 is about 1038.5699437051.

Adding to 1120230131 its reverse (1310320211), we get a palindrome (2430550342).

The spelling of 1120230131 in words is "one billion, one hundred twenty million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 7823 143197 1120230131