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13040013011021 = 3491091138124799
BaseRepresentation
bin1011110111000001110101…
…0101111110100001001101
31201011121112221001002112122
42331300131111332201031
53202121421312323041
643422255502142325
72514052451522243
oct275603525764115
951147487032478
1013040013011021
114178269435147
1215672a9b819a5
1373788b644bb9
143311d621c793
1517930238dc4b
hexbdc1d57e84d

13040013011021 has 16 divisors (see below), whose sum is σ = 13099369920000. Its totient is φ = 12980800756800.

The previous prime is 13040013011009. The next prime is 13040013011029. The reversal of 13040013011021 is 12011031004031.

It is a cyclic number.

It is not a de Polignac number, because 13040013011021 - 214 = 13040012994637 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 (13040013011029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525815780 + ... + 525840578.

It is an arithmetic number, because the mean of its divisors is an integer number (818710620000).

Almost surely, 213040013011021 is an apocalyptic number.

It is an amenable number.

13040013011021 is a deficient number, since it is larger than the sum of its proper divisors (59356908979).

13040013011021 is a wasteful number, since it uses less digits than its factorization.

13040013011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27620.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13040013011021 its reverse (12011031004031), we get a palindrome (25051044015052).

The spelling of 13040013011021 in words is "thirteen trillion, forty billion, thirteen million, eleven thousand, twenty-one".

Divisors: 1 349 1091 1381 24799 380759 481969 1506671 8654851 27055709 34247419 525828179 9442442441 11952349231 37363934129 13040013011021