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13210011231 = 3191033224351
BaseRepresentation
bin11000100110110000…
…01100011001011111
31021002121222002201020
430103120030121133
5204023230324411
610022452215223
7645233146164
oct142330143137
937077862636
1013210011231
115669785a5a
12268800a513
131326a529c1
148d45d606b
15524ad7606
hex31360c65f

13210011231 has 16 divisors (see below), whose sum is σ = 18558397440. Its totient is φ = 8335051200.

The previous prime is 13210011229. The next prime is 13210011233. The reversal of 13210011231 is 13211001231.

It is a happy number.

13210011231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13210011229) and next prime (13210011233).

It is not a de Polignac number, because 13210011231 - 21 = 13210011229 is a prime.

It is a super-2 number, since 2×132100112312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13210011231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13210011233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53295 + ... + 171056.

It is an arithmetic number, because the mean of its divisors is an integer number (1159899840).

Almost surely, 213210011231 is an apocalyptic number.

13210011231 is a deficient number, since it is larger than the sum of its proper divisors (5348386209).

13210011231 is a wasteful number, since it uses less digits than its factorization.

13210011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225406.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13210011231 its reverse (13211001231), we get a palindrome (26421012462).

The spelling of 13210011231 in words is "thirteen billion, two hundred ten million, eleven thousand, two hundred thirty-one".

Divisors: 1 3 19 57 1033 3099 19627 58881 224351 673053 4262669 12788007 231754583 695263749 4403337077 13210011231