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10231321213 = 69114806543
BaseRepresentation
bin10011000011101010…
…11001001001111101
3222102001000222011201
421201311121021331
5131423204234323
64411124415501
7511353536551
oct114165311175
928361028151
1010231321213
114380350073
121b96547591
13c708bcc29
146d0b79861
153ed3528ad
hex261d5927d

10231321213 has 4 divisors (see below), whose sum is σ = 10246128448. Its totient is φ = 10216513980.

The previous prime is 10231321183. The next prime is 10231321253. The reversal of 10231321213 is 31212313201.

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.

It is a cyclic number.

It is not a de Polignac number, because 10231321213 - 229 = 9694450301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231321253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7402581 + ... + 7403962.

It is an arithmetic number, because the mean of its divisors is an integer number (2561532112).

Almost surely, 210231321213 is an apocalyptic number.

It is an amenable number.

10231321213 is a deficient number, since it is larger than the sum of its proper divisors (14807235).

10231321213 is an equidigital number, since it uses as much as digits as its factorization.

10231321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14807234.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10231321213 its reverse (31212313201), we get a palindrome (41443634414).

It can be divided in two parts, 102313212 and 13, that added together give a square (102313225 = 101152).

The spelling of 10231321213 in words is "ten billion, two hundred thirty-one million, three hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 691 14806543 10231321213