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130031211231 = 32311676327803
BaseRepresentation
bin111100100011001110…
…1101101001011011111
3110102122002122221101100
41321012131231023133
54112300442224411
6135422512044143
712252203026125
oct1710635551337
9412562587340
10130031211231
1150167257639
122124b233653
13c3534b1c0c
1464176b1915
1535b097b456
hex1e4676d2df

130031211231 has 24 divisors (see below), whose sum is σ = 193900202496. Its totient is φ = 83883082320.

The previous prime is 130031211223. The next prime is 130031211269. The reversal of 130031211231 is 132112130031.

It is not a de Polignac number, because 130031211231 - 23 = 130031211223 is a prime.

It is a super-2 number, since 2×1300312112312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130031211131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4662976 + ... + 4690778.

It is an arithmetic number, because the mean of its divisors is an integer number (8079175104).

Almost surely, 2130031211231 is an apocalyptic number.

130031211231 is a deficient number, since it is larger than the sum of its proper divisors (63868991265).

130031211231 is a wasteful number, since it uses less digits than its factorization.

130031211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44603 (or 44600 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 130031211231 its reverse (132112130031), we get a palindrome (262143341262).

The spelling of 130031211231 in words is "one hundred thirty billion, thirty-one million, two hundred eleven thousand, two hundred thirty-one".

Divisors: 1 3 9 31 93 279 16763 27803 50289 83409 150867 250227 519653 861893 1558959 2585679 4676877 7757037 466061689 1398185067 4194555201 14447912359 43343737077 130031211231