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121050121203401 = 132997617179889
BaseRepresentation
bin11011100001100000101101…
…011110010110111011001001
3120212121021112002002101212012
4123201200231132112323021
5111331241122012002101
61105241354042425305
734332403564141505
oct3341405536267311
9525537462071765
10121050121203401
1135630082716055
12116b03a8802235
135270c925c0b00
1421c6bddd57305
15dedbd1203bbb
hex6e182d796ec9

121050121203401 has 12 divisors (see below), whose sum is σ = 131079274070940. Its totient is φ = 111737437793280.

The previous prime is 121050121203377. The next prime is 121050121203469. The reversal of 121050121203401 is 104302121050121.

It can be written as a sum of positive squares in 6 ways, for example, as 24104908605625 + 96945212597776 = 4909675^2 + 9846076^2 .

It is not a de Polignac number, because 121050121203401 - 210 = 121050121202377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121050121203491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13269665 + ... + 20449553.

It is an arithmetic number, because the mean of its divisors is an integer number (10923272839245).

Almost surely, 2121050121203401 is an apocalyptic number.

It is an amenable number.

121050121203401 is a deficient number, since it is larger than the sum of its proper divisors (10029152867539).

121050121203401 is an equidigital number, since it uses as much as digits as its factorization.

121050121203401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279676 (or 7279663 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 121050121203401 its reverse (104302121050121), we get a palindrome (225352242253522).

The spelling of 121050121203401 in words is "one hundred twenty-one trillion, fifty billion, one hundred twenty-one million, two hundred three thousand, four hundred one".

Divisors: 1 13 169 99761 1296893 7179889 16859609 93338557 1213401241 716272906529 9311547784877 121050121203401