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130120231211 = 23331251637
BaseRepresentation
bin111100100101111000…
…1010010100100101011
3110102212022011121211122
41321023301102210223
54112441234344321
6135435412045455
712254333500445
oct1711361224453
9412768147748
10130120231211
1150202529673
122127500388b
13c368a7ca69
146425445495
1535b86b28ab
hex1e4bc5292b

130120231211 has 12 divisors (see below), whose sum is σ = 136191713616. Its totient is φ = 124084406160.

The previous prime is 130120231183. The next prime is 130120231229. The reversal of 130120231211 is 112132021031.

It is not a de Polignac number, because 130120231211 - 26 = 130120231147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130120231211.

It is not an unprimeable number, because it can be changed into a prime (130120231411) 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 11 ways as a sum of consecutive naturals, for example, 2494085 + ... + 2545721.

It is an arithmetic number, because the mean of its divisors is an integer number (11349309468).

Almost surely, 2130120231211 is an apocalyptic number.

130120231211 is a deficient number, since it is larger than the sum of its proper divisors (6071482405).

130120231211 is an frugal number, since it uses more digits than its factorization.

130120231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52322 (or 51991 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 130120231211 its reverse (112132021031), we get a palindrome (242252252242).

The spelling of 130120231211 in words is "one hundred thirty billion, one hundred twenty million, two hundred thirty-one thousand, two hundred eleven".

Divisors: 1 23 331 7613 51637 109561 1187651 2519903 17091847 393112481 5657401357 130120231211