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31101133101 = 3618313914731
BaseRepresentation
bin11100111101110001…
…011010000100101101
32222021111021021000120
4130331301122010231
51002143342224401
622142045115153
72150500161303
oct347561320455
988244237016
1031101133101
111220a862695
12603b858ab9
132c1855174c
1417107a0273
15c20635836
hex73dc5a12d

31101133101 has 32 divisors (see below), whose sum is σ = 42965583360. Its totient is φ = 20002161600.

The previous prime is 31101133057. The next prime is 31101133121. The reversal of 31101133101 is 10133110113.

It is not a de Polignac number, because 31101133101 - 211 = 31101131053 is a prime.

It is a super-2 number, since 2×311011331012 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101133121) 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 31 ways as a sum of consecutive naturals, for example, 2103906 + ... + 2118636.

It is an arithmetic number, because the mean of its divisors is an integer number (1342674480).

Almost surely, 231101133101 is an apocalyptic number.

It is an amenable number.

31101133101 is a deficient number, since it is larger than the sum of its proper divisors (11864450259).

31101133101 is a wasteful number, since it uses less digits than its factorization.

31101133101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15017.

The product of its (nonzero) digits is 27, while the sum is 15.

Adding to 31101133101 its reverse (10133110113), we get a palindrome (41234243214).

The spelling of 31101133101 in words is "thirty-one billion, one hundred one million, one hundred thirty-three thousand, one hundred one".

Divisors: 1 3 61 83 139 183 249 417 5063 8479 11537 14731 15189 25437 34611 44193 703757 898591 1222673 2047609 2111271 2695773 3668019 6142827 74583053 124904149 169951547 223749159 374712447 509854641 10367044367 31101133101