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131213410231200 = 253521129307955663
BaseRepresentation
bin11101110101011010000000…
…101101001110001110100000
3122012120212202011102201121220
4131311122000231032032200
5114144300031004344300
61143022335234215040
736431566424405463
oct3565320055161640
9565525664381556
10131213410231200
1138899327392520
1212872055724480
13582a4aa22602b
142458a9771b2da
15102826671ada0
hex775680b4e3a0

131213410231200 has 576 divisors, whose sum is σ = 482158539878400. Its totient is φ = 30701912371200.

The previous prime is 131213410231193. The next prime is 131213410231219. The reversal of 131213410231200 is 2132014312131.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2357254569 + ... + 2357310231.

It is an arithmetic number, because the mean of its divisors is an integer number (837080798400).

Almost surely, 2131213410231200 is an apocalyptic number.

131213410231200 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 131213410231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241079269939200).

131213410231200 is an abundant number, since it is smaller than the sum of its proper divisors (350945129647200).

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

131213410231200 is a wasteful number, since it uses less digits than its factorization.

131213410231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58805 (or 58792 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131213410231200 its reverse (2132014312131), we get a palindrome (133345424543331).

The spelling of 131213410231200 in words is "one hundred thirty-one trillion, two hundred thirteen billion, four hundred ten million, two hundred thirty-one thousand, two hundred".