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121311100302013 = 1783349547450361
BaseRepresentation
bin11011100101010011110001…
…000010100111001010111101
3120220112020011011022020220101
4123211103301002213022331
5111400030113134131023
61110001314454321101
734360303103652226
oct3345236102471275
9526466134266811
10121311100302013
1135720826601616
1211732aa2059191
13528c78416984b
1421d56ba95824d
15e058a7d2e1ad
hex6e54f10a72bd

121311100302013 has 32 divisors (see below), whose sum is σ = 130605700579200. Its totient is φ = 112270467778560.

The previous prime is 121311100301987. The next prime is 121311100302097. The reversal of 121311100302013 is 310203001113121.

It is a cyclic number.

It is not a de Polignac number, because 121311100302013 - 233 = 121302510367421 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 (121311100309013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269138953 + ... + 269589313.

It is an arithmetic number, because the mean of its divisors is an integer number (4081428143100).

Almost surely, 2121311100302013 is an apocalyptic number.

It is an amenable number.

121311100302013 is a deficient number, since it is larger than the sum of its proper divisors (9294600277187).

121311100302013 is a wasteful number, since it uses less digits than its factorization.

121311100302013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451357.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121311100302013 its reverse (310203001113121), we get a palindrome (431514101415134).

The spelling of 121311100302013 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred million, three hundred two thousand, thirteen".

Divisors: 1 17 83 349 547 1411 5933 9299 28967 45401 190903 450361 492439 771817 3245351 7656137 15844949 37379963 157175989 246347467 269364133 635459371 2671991813 4187906939 13045607087 20446839761 85975265983 221775320479 347596275937 1461579521711 7135947076589 121311100302013