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31100002130003 = 305281101873363
BaseRepresentation
bin1110001001001000010001…
…00101000101100001010011
311002010010112121202202000212
413010210020211011201103
513034020301021130003
6150051051014234335
76356621021254532
oct704441045054123
9132103477682025
1031100002130003
119a00489477384
1235a347b9559ab
1314479437b1b81
14797368c4a319
1538deb0a4add8
hex1c4908945853

31100002130003 has 4 divisors (see below), whose sum is σ = 31100104308648. Its totient is φ = 31099899951360.

The previous prime is 31100002129967. The next prime is 31100002130077. The reversal of 31100002130003 is 30003120000113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31100002130003 - 26 = 31100002129939 is a prime.

It is a super-2 number, since 2×311000021300032 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31100002130003.

It is not an unprimeable number, because it can be changed into a prime (31100002130803) 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 3 ways as a sum of consecutive naturals, for example, 50631401 + ... + 51241962.

It is an arithmetic number, because the mean of its divisors is an integer number (7775026077162).

Almost surely, 231100002130003 is an apocalyptic number.

31100002130003 is a deficient number, since it is larger than the sum of its proper divisors (102178645).

31100002130003 is a wasteful number, since it uses less digits than its factorization.

31100002130003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102178644.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31100002130003 its reverse (30003120000113), we get a palindrome (61103122130116).

The spelling of 31100002130003 in words is "thirty-one trillion, one hundred billion, two million, one hundred thirty thousand, three".

Divisors: 1 305281 101873363 31100002130003