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2131013101 = 76116633001
BaseRepresentation
bin111111100000100…
…1010110111101101
312111111212200102011
41333001022313231
513331014404401
6551243001221
7103544212120
oct17701126755
95444780364
102131013101
119a39a0758
124b5809211
1327c658cc9
141630403b7
15c7141451
hex7f04aded

2131013101 has 16 divisors (see below), whose sum is σ = 2477682688. Its totient is φ = 1794960000.

The previous prime is 2131013081. The next prime is 2131013123. The reversal of 2131013101 is 1013101312.

It is a cyclic number.

It is not a de Polignac number, because 2131013101 - 27 = 2131012973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131013161) 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 15 ways as a sum of consecutive naturals, for example, 708601 + ... + 711601.

It is an arithmetic number, because the mean of its divisors is an integer number (154855168).

Almost surely, 22131013101 is an apocalyptic number.

It is an amenable number.

2131013101 is a deficient number, since it is larger than the sum of its proper divisors (346669587).

2131013101 is a wasteful number, since it uses less digits than its factorization.

2131013101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2131013101 is about 46162.8974502251. The cubic root of 2131013101 is about 1286.8523102413.

Adding to 2131013101 its reverse (1013101312), we get a palindrome (3144114413).

The spelling of 2131013101 in words is "two billion, one hundred thirty-one million, thirteen thousand, one hundred one".

Divisors: 1 7 61 427 1663 3001 11641 21007 101443 183061 710101 1281427 4990663 34934641 304430443 2131013101