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2127011131 = 7303858733
BaseRepresentation
bin111111011000111…
…1001110100111011
312111020100100202001
41332301321310323
513324003324011
6551021121431
7103465203430
oct17661716473
95436310661
102127011131
119a1707a43
124b43b9277
1327b88758b
141626bbb87
15c6b007c1
hex7ec79d3b

2127011131 has 4 divisors (see below), whose sum is σ = 2430869872. Its totient is φ = 1823152392.

The previous prime is 2127011129. The next prime is 2127011149. The reversal of 2127011131 is 1311107212.

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 2127011131 - 21 = 2127011129 is a prime.

It is a super-2 number, since 2×21270111312 = 9048352702795798322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2127011099 and 2127011108.

It is not an unprimeable number, because it can be changed into a prime (2127011101) 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, 151929360 + ... + 151929373.

It is an arithmetic number, because the mean of its divisors is an integer number (607717468).

Almost surely, 22127011131 is an apocalyptic number.

2127011131 is a deficient number, since it is larger than the sum of its proper divisors (303858741).

2127011131 is an equidigital number, since it uses as much as digits as its factorization.

2127011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303858740.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 2127011131 is about 46119.5309061140. The cubic root of 2127011131 is about 1286.0462505144.

Adding to 2127011131 its reverse (1311107212), we get a palindrome (3438118343).

The spelling of 2127011131 in words is "two billion, one hundred twenty-seven million, eleven thousand, one hundred thirty-one".

Divisors: 1 7 303858733 2127011131