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11312313001 = 111028392091
BaseRepresentation
bin10101000100100010…
…00011001010101001
31002012101010001010121
422202101003022221
5141131423004001
65110302043241
7550221034243
oct124221031251
932171101117
1011312313001
114885562210
122238579521
1310b3846a42
1479456b093
154631d16a1
hex2a24432a9

11312313001 has 4 divisors (see below), whose sum is σ = 12340705104. Its totient is φ = 10283920900.

The previous prime is 11312312987. The next prime is 11312313029. The reversal of 11312313001 is 10031321311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10031321311 = 11911938301.

It is not a de Polignac number, because 11312313001 - 25 = 11312312969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312313071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514196035 + ... + 514196056.

It is an arithmetic number, because the mean of its divisors is an integer number (3085176276).

Almost surely, 211312313001 is an apocalyptic number.

11312313001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11312313001 is a deficient number, since it is larger than the sum of its proper divisors (1028392103).

11312313001 is a wasteful number, since it uses less digits than its factorization.

11312313001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028392102.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11312313001 its reverse (10031321311), we get a palindrome (21343634312).

It can be divided in two parts, 1131 and 2313001, that added together give a palindrome (2314132).

The spelling of 11312313001 in words is "eleven billion, three hundred twelve million, three hundred thirteen thousand, one".

Divisors: 1 11 1028392091 11312313001