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131142421212000 = 25353113209309599
BaseRepresentation
bin11101110100010111111001…
…011011100110101101100000
3122012100002111211001220110120
4131310113321123212231200
5114142114134312241000
61142525555133200240
736423504310611102
oct3564277133465540
9565302454056416
10131142421212000
1138871208997710
1212860343630080
1358238a5c17623
142455481615572
1510264ae3976a0
hex7745f96e6b60

131142421212000 has 384 divisors, whose sum is σ = 468826735104000. Its totient is φ = 31782092288000.

The previous prime is 131142421211999. The next prime is 131142421212037. The reversal of 131142421212000 is 212124241131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 423433201 + ... + 423742799.

It is an arithmetic number, because the mean of its divisors is an integer number (1220902956000).

Almost surely, 2131142421212000 is an apocalyptic number.

131142421212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131142421212000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234413367552000).

131142421212000 is an abundant number, since it is smaller than the sum of its proper divisors (337684313892000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131142421212000 is a wasteful number, since it uses less digits than its factorization.

131142421212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312847 (or 312829 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 131142421212000 its reverse (212124241131), we get a palindrome (131354545453131).

The spelling of 131142421212000 in words is "one hundred thirty-one trillion, one hundred forty-two billion, four hundred twenty-one million, two hundred twelve thousand".