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121122090013 = 436161437517
BaseRepresentation
bin111000011001101110…
…0000110110000011101
3102120122012120200121211
41300303130012300131
53441024223340023
6131350454424421
711515342530601
oct1606334066035
9376565520554
10121122090013
1147405297a41
121b583662111
13b563800862
145c10395501
15323d751a0d
hex1c33706c1d

121122090013 has 16 divisors (see below), whose sum is σ = 126007934976. Its totient is φ = 116331445440.

The previous prime is 121122090007. The next prime is 121122090031. The reversal of 121122090013 is 310090221121.

It is a cyclic number.

It is not a de Polignac number, because 121122090013 - 25 = 121122089981 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 (121122090053) 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, 16109331 + ... + 16116847.

It is an arithmetic number, because the mean of its divisors is an integer number (7875495936).

Almost surely, 2121122090013 is an apocalyptic number.

It is an amenable number.

121122090013 is a deficient number, since it is larger than the sum of its proper divisors (4885844963).

121122090013 is an equidigital number, since it uses as much as digits as its factorization.

121122090013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13764.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 121122090013 in words is "one hundred twenty-one billion, one hundred twenty-two million, ninety thousand, thirteen".

Divisors: 1 43 61 2623 6143 7517 264149 323231 374723 458537 16113089 19717091 46176931 1985608033 2816792791 121122090013