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2131114231 = 4103951929
BaseRepresentation
bin111111100000110…
…0011100011110111
312111112001211010201
41333001203203313
513331031123411
6551245101331
7103545113011
oct17701434367
95445054121
102131114231
119a3a5a734
124b5857847
1327c69304c
141630691b1
15c71613c1
hex7f0638f7

2131114231 has 4 divisors (see below), whose sum is σ = 2131207200. Its totient is φ = 2131021264.

The previous prime is 2131114217. The next prime is 2131114253. The reversal of 2131114231 is 1324111312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2131114231 - 25 = 2131114199 is a prime.

It is a super-2 number, since 2×21311142312 = 9083295731141442722, 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 = 2131114199 and 2131114208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131114201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15075 + ... + 67003.

It is an arithmetic number, because the mean of its divisors is an integer number (532801800).

Almost surely, 22131114231 is an apocalyptic number.

2131114231 is a deficient number, since it is larger than the sum of its proper divisors (92969).

2131114231 is an equidigital number, since it uses as much as digits as its factorization.

2131114231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92968.

The product of its digits is 144, while the sum is 19.

The square root of 2131114231 is about 46163.9927974173. The cubic root of 2131114231 is about 1286.8726663363.

Adding to 2131114231 its reverse (1324111312), we get a palindrome (3455225543).

The spelling of 2131114231 in words is "two billion, one hundred thirty-one million, one hundred fourteen thousand, two hundred thirty-one".

Divisors: 1 41039 51929 2131114231