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BaseRepresentation
bin11101110101001110110101…
…000110010100011001001000
3122012112201202110012102022001
4131311032311012110121020
5114144100434001322100
61143013032034040344
736430663052025025
oct3565166506243110
9565481673172261
10131201404323400
1138894226366274
121286b864a190b4
135829315aa3488
14245827900254c
151027cb26ced6a
hex7753b5194648

131201404323400 has 24 divisors (see below), whose sum is σ = 305043265052370. Its totient is φ = 52480561729280.

The previous prime is 131201404323389. The next prime is 131201404323439. The reversal of 131201404323400 is 4323404102131.

Adding to 131201404323400 its reverse (4323404102131), we get a palindrome (135524808425531).

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 113463442294084 + 17737962029316 = 10651922^2 + 4211646^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 328003510609 + ... + 328003511008.

Almost surely, 2131201404323400 is an apocalyptic number.

131201404323400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201404323400 is an abundant number, since it is smaller than the sum of its proper divisors (173841860728970).

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

131201404323400 is a wasteful number, since it uses less digits than its factorization.

131201404323400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656007021633 (or 656007021624 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 131201404323400 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, three hundred twenty-three thousand, four hundred".