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3131100031011 = 323971322935363
BaseRepresentation
bin101101100100000100000…
…110101110100000100011
3102002022220202002212221020
4231210010012232200203
5402244443101443021
610354224004100523
7442133402063661
oct55440406564043
912068822085836
103131100031011
11aa798a381447
124269b3094743
13199352596554
14ab79050bc31
15566a8e477c6
hex2d9041ae823

3131100031011 has 32 divisors (see below), whose sum is σ = 4401680693760. Its totient is φ = 1975854296064.

The previous prime is 3131100030931. The next prime is 3131100031051. The reversal of 3131100031011 is 1101300011313.

It is not a de Polignac number, because 3131100031011 - 225 = 3131066476579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3131100031051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88524016 + ... + 88559378.

It is an arithmetic number, because the mean of its divisors is an integer number (137552521680).

Almost surely, 23131100031011 is an apocalyptic number.

3131100031011 is a deficient number, since it is larger than the sum of its proper divisors (1270580662749).

3131100031011 is a wasteful number, since it uses less digits than its factorization.

3131100031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48715.

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

Adding to 3131100031011 its reverse (1101300011313), we get a palindrome (4232400042324).

The spelling of 3131100031011 in words is "three trillion, one hundred thirty-one billion, one hundred million, thirty-one thousand, eleven".

Divisors: 1 3 23 69 97 291 2231 6693 13229 35363 39687 106089 304267 813349 912801 1283213 2440047 3430211 3849639 10290633 29513899 78894853 88541697 236684559 467817127 1403451381 10759793921 32279381763 45378261319 136134783957 1043700010337 3131100031011