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10101031213 = 713111000343
BaseRepresentation
bin10010110100001000…
…11000000100101101
3222001221212112220011
421122010120010231
5131141330444323
64350152053221
7505212230410
oct113204300455
928057775804
1010101031213
114313850289
121b5a994211
13c4c902460
146bb741b77
153e1bb820d
hex25a11812d

10101031213 has 8 divisors (see below), whose sum is σ = 12432038528. Its totient is φ = 7992024624.

The previous prime is 10101031211. The next prime is 10101031223. The reversal of 10101031213 is 31213010101.

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 10101031213 - 21 = 10101031211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 10101031193 and 10101031202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101031211) 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 7 ways as a sum of consecutive naturals, for example, 55500081 + ... + 55500262.

It is an arithmetic number, because the mean of its divisors is an integer number (1554004816).

Almost surely, 210101031213 is an apocalyptic number.

10101031213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10101031213 is a deficient number, since it is larger than the sum of its proper divisors (2331007315).

10101031213 is a wasteful number, since it uses less digits than its factorization.

10101031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111000363.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 10101031213 its reverse (31213010101), we get a palindrome (41314041314).

The spelling of 10101031213 in words is "ten billion, one hundred one million, thirty-one thousand, two hundred thirteen".

Divisors: 1 7 13 91 111000343 777002401 1443004459 10101031213