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11312021201 = 13941992383
BaseRepresentation
bin10101000100011111…
…11011111011010001
31002012100120012212012
422202033323323101
5141131334134301
65110251512305
7550215410435
oct124217737321
932170505765
1011312021201
114885382a58
122238458695
1310b3773c90
147944d29c5
15463174ebb
hex2a23fbed1

11312021201 has 8 divisors (see below), whose sum is σ = 12183601920. Its totient is φ = 10440644112.

The previous prime is 11312021183. The next prime is 11312021243. The reversal of 11312021201 is 10212021311.

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

It is a cyclic number.

It is not a de Polignac number, because 11312021201 - 218 = 11311759057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312021261) 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, 76256 + ... + 168638.

It is an arithmetic number, because the mean of its divisors is an integer number (1522950240).

Almost surely, 211312021201 is an apocalyptic number.

It is an amenable number.

11312021201 is a deficient number, since it is larger than the sum of its proper divisors (871580719).

11312021201 is an equidigital number, since it uses as much as digits as its factorization.

11312021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101815.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11312021201 its reverse (10212021311), we get a palindrome (21524042512).

The spelling of 11312021201 in words is "eleven billion, three hundred twelve million, twenty-one thousand, two hundred one".

Divisors: 1 13 9419 92383 122447 1200979 870155477 11312021201