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10231313021 = 192419772287
BaseRepresentation
bin10011000011101010…
…10111001001111101
3222102001000112221022
421201311113021331
5131423204004041
64411124313525
7511353503636
oct114165271175
928361015838
1010231313021
1143803449a6
121b965428a5
13c708b9297
146d0b7688d
153ed35024b
hex261d5727d

10231313021 has 16 divisors (see below), whose sum is σ = 10830293760. Its totient is φ = 9638507520.

The previous prime is 10231312937. The next prime is 10231313033. The reversal of 10231313021 is 12031313201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10231313021 is a prime.

It is a super-2 number, since 2×102313130212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231313041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4472540 + ... + 4474826.

It is an arithmetic number, because the mean of its divisors is an integer number (676893360).

Almost surely, 210231313021 is an apocalyptic number.

It is an amenable number.

10231313021 is a deficient number, since it is larger than the sum of its proper divisors (598980739).

10231313021 is a wasteful number, since it uses less digits than its factorization.

10231313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10231313021 its reverse (12031313201), we get a palindrome (22262626222).

The spelling of 10231313021 in words is "ten billion, two hundred thirty-one million, three hundred thirteen thousand, twenty-one".

Divisors: 1 19 241 977 2287 4579 18563 43453 235457 551167 2234399 4473683 10472173 42453581 538490159 10231313021