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2131212331210 = 25434956307747
BaseRepresentation
bin11111000000110110001…
…001110110100011001010
321112202000211222220100211
4133000312021312203022
5234404210324044320
64311022044351334
7306655266626524
oct37006611664312
97482024886324
102131212331210
11751929889336
122a506284554a
13125c8465a041
1475218d78a14
153a6874b555a
hex1f0362768ca

2131212331210 has 16 divisors (see below), whose sum is σ = 3925395736416. Its totient is φ = 832659701328.

The previous prime is 2131212331153. The next prime is 2131212331211. The reversal of 2131212331210 is 121332121312.

It is not an unprimeable number, because it can be changed into a prime (2131212331211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2478153444 + ... + 2478154303.

It is an arithmetic number, because the mean of its divisors is an integer number (245337233526).

Almost surely, 22131212331210 is an apocalyptic number.

2131212331210 is a deficient number, since it is larger than the sum of its proper divisors (1794183405206).

2131212331210 is a wasteful number, since it uses less digits than its factorization.

2131212331210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956307797.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2131212331210 its reverse (121332121312), we get a palindrome (2252544452522).

The spelling of 2131212331210 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, three hundred thirty-one thousand, two hundred ten".

Divisors: 1 2 5 10 43 86 215 430 4956307747 9912615494 24781538735 49563077470 213121233121 426242466242 1065606165605 2131212331210