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1230201011 = 13109386579
BaseRepresentation
bin100100101010011…
…0110000010110011
310011201211200112102
41021110312002303
510004412413021
6322023251015
742325351604
oct11124660263
93151750472
101230201011
11581464256
122a3ba9a6b
13167b39ac0
14b9551dab
157300400b
hex495360b3

1230201011 has 8 divisors (see below), whose sum is σ = 1326059280. Its totient is φ = 1134518112.

The previous prime is 1230201001. The next prime is 1230201019. The reversal of 1230201011 is 1101020321.

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

It is not a de Polignac number, because 1230201011 - 26 = 1230200947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230200983 and 1230201001.

It is not an unprimeable number, because it can be changed into a prime (1230201019) 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, 29081 + ... + 57498.

It is an arithmetic number, because the mean of its divisors is an integer number (165757410).

Almost surely, 21230201011 is an apocalyptic number.

1230201011 is a deficient number, since it is larger than the sum of its proper divisors (95858269).

1230201011 is a wasteful number, since it uses less digits than its factorization.

1230201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87685.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1230201011 is about 35074.2214596418. The cubic root of 1230201011 is about 1071.4996327666.

Adding to 1230201011 its reverse (1101020321), we get a palindrome (2331221332).

The spelling of 1230201011 in words is "one billion, two hundred thirty million, two hundred one thousand, eleven".

Divisors: 1 13 1093 14209 86579 1125527 94630847 1230201011