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13031300021131 = 71997979699407
BaseRepresentation
bin1011110110100001011000…
…0000100011101110001011
31201010210001201000100101101
42331220112000203232023
53202001100301134011
643414255132402231
72513323522366330
oct275502600435613
951123051010341
1013031300021131
1141745a8155957
121565678016377
13736b00494c92
14330a0ad98987
15178e924a72c1
hexbda16023b8b

13031300021131 has 8 divisors (see below), whose sum is σ = 15676751905280. Its totient is φ = 10581807535848.

The previous prime is 13031300021111. The next prime is 13031300021149. The reversal of 13031300021131 is 13112000313031.

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

It is a cyclic number.

It is not a de Polignac number, because 13031300021131 - 229 = 13030763150219 is a prime.

It is a super-2 number, since 2×130313000211312 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13031300021099 and 13031300021108.

It is not an unprimeable number, because it can be changed into a prime (13031300021111) 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, 48989849571 + ... + 48989849836.

It is an arithmetic number, because the mean of its divisors is an integer number (1959593988160).

Almost surely, 213031300021131 is an apocalyptic number.

13031300021131 is a deficient number, since it is larger than the sum of its proper divisors (2645451884149).

13031300021131 is an equidigital number, since it uses as much as digits as its factorization.

13031300021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97979699433.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13031300021131 its reverse (13112000313031), we get a palindrome (26143300334162).

The spelling of 13031300021131 in words is "thirteen trillion, thirty-one billion, three hundred million, twenty-one thousand, one hundred thirty-one".

Divisors: 1 7 19 133 97979699407 685857895849 1861614288733 13031300021131