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2131120101 = 31164579397
BaseRepresentation
bin111111100000110…
…0100111111100101
312111112002010012010
41333001210333211
513331031320401
6551245144433
7103545136065
oct17701447745
95445063163
102131120101
119a3a64090
124b585b119
1327c695916
1416306b3a5
15c7162ed6
hex7f064fe5

2131120101 has 8 divisors (see below), whose sum is σ = 3099811104. Its totient is φ = 1291587920.

The previous prime is 2131120097. The next prime is 2131120109. The reversal of 2131120101 is 1010211312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131120101 - 22 = 2131120097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131120109) 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 7 ways as a sum of consecutive naturals, for example, 32289666 + ... + 32289731.

It is an arithmetic number, because the mean of its divisors is an integer number (387476388).

Almost surely, 22131120101 is an apocalyptic number.

It is an amenable number.

2131120101 is a deficient number, since it is larger than the sum of its proper divisors (968691003).

2131120101 is a wasteful number, since it uses less digits than its factorization.

2131120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64579411.

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

The square root of 2131120101 is about 46164.0563750631. The cubic root of 2131120101 is about 1286.8738478678.

Adding to 2131120101 its reverse (1010211312), we get a palindrome (3141331413).

The spelling of 2131120101 in words is "two billion, one hundred thirty-one million, one hundred twenty thousand, one hundred one".

Divisors: 1 3 11 33 64579397 193738191 710373367 2131120101