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1237320100913 = 1397981221333
BaseRepresentation
bin10010000000010110000…
…001100110110000110001
311101021201222001200001012
4102000112001212300301
5130233012421212123
62344230023520305
7155251642216661
oct22002601466061
94337658050035
101237320100913
11437820a382a6
1217b973bb9095
138c8a93a0b60
1443c5ac161a1
15222bb2ad378
hex12016066c31

1237320100913 has 8 divisors (see below), whose sum is σ = 1346235670248. Its totient is φ = 1130366974464.

The previous prime is 1237320100901. The next prime is 1237320100979. The reversal of 1237320100913 is 3190010237321.

It can be written as a sum of positive squares in 4 ways, for example, as 52080716944 + 1185239383969 = 228212^2 + 1088687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1237320100913 - 216 = 1237320035377 is a prime.

It is a super-2 number, since 2×12373201009132 (a number of 25 digits) contains 22 as substring.

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 1237320100913.

It is not an unprimeable number, because it can be changed into a prime (1237320103913) 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, 490609406 + ... + 490611927.

It is an arithmetic number, because the mean of its divisors is an integer number (168279458781).

Almost surely, 21237320100913 is an apocalyptic number.

1237320100913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1237320100913 is a deficient number, since it is larger than the sum of its proper divisors (108915569335).

1237320100913 is an equidigital number, since it uses as much as digits as its factorization.

1237320100913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981221443.

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 1237320100913 in words is "one trillion, two hundred thirty-seven billion, three hundred twenty million, one hundred thousand, nine hundred thirteen".

Divisors: 1 13 97 1261 981221333 12755877329 95178469301 1237320100913